RPZ

Schedule 2 paragraph 15 of the water fittings regulations in England, Wales and Northern Ireland, byelaws in Scotland require every plumbing system to incorporate protection against backflow. This is often referred to as point of use backflow protection. It can be provided by an air or tap gap arrangement or a mechanical backflow prevention device. 

Also known as a BA device, an RPZ valve is mechanical backflow prevention device capable of providing protection, against both back pressure and back siphonage, up to and including fluid category 4.

By means of a combination of check and relief valves an RPZ valve aims to ensure the water downstream is at a lower pressure than the incoming supply.

The installation, including relocation, of RPZ valves must be notified to the local water undertaker. RPZ valves must be installed and tested in accordance with the Water Industry RPZ Approved Installation Method (AIM ). 

Related FAQs

Type BA or RPZ valve

<h1 id="type-ba-or-rpz-valve">Type BA or RPZ valve</h1><hr><p>A Type BA, more commonly known as a reduced pressure zone or RPZ valve, is a mechanical backflow protection device. It comprises of a combination of check and relief valves in different zones which perform specific functions to ensure there is no backflow should the downstream pressure become higher than the incoming supply or the valve malfunctions.</p><p style="text-align: start;">An RPZ valve &nbsp;is rated by the Regulators as suitable backflow protection against both back siphonage and back pressure for contamination risks no greater than&nbsp;fluid category&nbsp;4 .</p><p><br></p><div class="duocmsrow"><div class="duocmscol"><figure class="img-responsive" style="min-width: auto; min-height: auto;"><img src="/images/topics/backflow/rpz_valve_1_v_1.0.jpg" style="width: 100%"></figure></div><div class="duocmscol"><figure class="img-responsive" style="min-width: auto; min-height: auto;"><img src="/images/topics/backflow/rpz_valve_2_v1.0.jpg" style="width: 100%"></figure></div></div><p><br></p><p>In addition to regular inspection RPZ valves are required to undergo routine testing to verify they are working correctly. For further information about this testing as well as specific installation requirements please refer to the RPZ AIM and FAQs. Please note testing intervals will be at the discretion of the local water undertaker but not less than annually.</p><p><br></p><!--PARTBREAK--><h1 id="faqs">FAQs</h1><!--PARTBREAK--><p><br></p>

Who can install and test an RPZ valve?

<h1 id="who-can-install-and-test-an">Who can install and test an RPZ valve?</h1><hr><h4 class="p1" id="who-can-install-and-test-an"></h4><p><img src="/images/topics/faqs/rpz-tundish-cv-openflow-section-brass-4_a3_.png" class="img-responsive" style="width: 236px; float: right; margin-bottom: 15px; margin-left: 15px;" loading="lazy">In addition to manufacturers installation instructions RPZ valves must be installed and tested in accordance with the&nbsp;<a href="/publications/aims/">RPZ AIM</a></p><p>Once installed an RPZ valve needs to be commission and compliance tested before it can be brought into service. The valve will also need to be compliance tested at regular intervals thereafter, as well as following relocation or repair.</p><p>To comply with the RPZ AIM commission and compliance testing should only be carried out by someone having an RPZ valve testing qualification recognised by the local water undertaker.</p><p>Details of what is required by water undertakers to be considered as evidence of competency to test an RPZ valve are provided in the&nbsp;RPZ AIM&nbsp;glossary.</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is an RPZ valve?

<h1 id="what-is-an-rpz-valve">What is an RPZ valve?</h1><hr><figure class="img-responsive ProseMirror-selectednode" style="float: right; width: 266px; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/rpz-tundish-cv-openflow-section-brass-4_a3_.png" class="img-responsive" style="width: 100%"></figure><p>Also known as a BA device, an RPZ valve is mechanical backflow prevention device capable of providing protection, against both back pressure and back siphonage, up to and including fluid category 4.</p><p>By means of a combination of check and relief valves an RPZ valve aims to ensure the water downstream is at a lower pressure than the incoming supply.</p><p>The installation, including relocation, of RPZ valves must be notified to the local water</p><p>undertaker. RPZ valves must be installed and tested in accordance with the Water Industry RPZ Approved Installation Method <a href="/publications/aims/">(AIM ).</a></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is an AIM?

<figure class="img-responsive ProseMirror-selectednode" style="float: right; width: 271.073px; min-width: auto; min-height: auto; margin-left: 20px;"><img src="/images/topics/faqs/front_cover.png" style="width: 100%"></figure><h1 id="rpz-faqs-general">What is an AIM?</h1><hr><p>An installation method (AIM) is a procedure approved by Water undertakers.</p><p>The current version of the <a href="/publications/aims/">RPZ AIM</a>, came into force on 1st January 2025. It provides procedures for both installing and testing of RPZ valves.</p><p>It is approved the water undertakers in England, Scotland, Wales and Northern Ireland listed on page 2.</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Where can I find the RPZ AIM?

<figure class="img-responsive ProseMirror-selectednode" style="float: right; width: 319.083px; margin-right: 0px; min-width: auto; min-height: auto; margin-left: 30px;"><img src="/images/topics/faqs/front_cover.png" style="width: 100%"></figure><h1 id="where-can-i-find-the-rpz">Where can I find the RPZ AIM?</h1><hr><p>A copy of the current version of the AIM, can be found on the Water Regs UK website or click <a href="/publications/aims/">here</a></p><p><strong>Please note</strong>: the AIM requires test equipment to meet a<a href="/publications/aims/"> minimum specification</a>.</p><p><br></p><p><br><br></p><p>&nbsp;</p><p><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

How do I know if I need an RPZ valve?

<h1 id="how-do-i-know-if-i">How do I know if I need an RPZ valve?</h1><hr><p>RPZ valves, or BA devices, are a recognised form of backflow prevention offering protection against back pressure and back siphonage up to and including fluid category 4.</p><p>If a plumbing system in your premises has been categorised as fluid category 4 or less by your water undertaker, then an RPZ valve may be an appropriate form of point of use backflow protection. An information leaflet highlighting things those responsible for plumbing systems should be aware of if thinking about installing or already have RPZ valves installed can be found <a href="/publications/information-leaflets/">here</a>.</p><p>An RPZ valve may also be suitable for wholesite backflow protection. For further information consult the local water undertaker.</p><p><strong>Please note:</strong></p><ul><li><p>Only RPZ valves installed and tested in accordance with the RPZ AIM will be considered as providing backflow protection.</p></li></ul><ul><li><p>To show they are functioning satisfactorily all RPZ valves are required to be regularly tested by a competent RPZ tester. Test intervals are set by the local water undertaker. Whilst test intervals may vary, they will be at least annually.</p></li></ul><figure class="img-responsive ProseMirror-selectednode" style="float: none; margin-left: auto; margin-right: auto; min-width: auto; min-height: auto; width: 511.667px;"><img src="/images/topics/backflow_protection.png" class="img-responsive" style="width: 100%"></figure><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is a fluid category 4 risk?

<h1 id="what-is-a-fluid-category-4">What is a fluid category 4 risk?</h1><hr><p>The water fittings regulations in <a href="https://www.legislation.gov.uk/uksi/1999/1148/contents">England, Wales</a> and <a href="https://www.legislation.gov.uk/nisr/2009/255/contents">Northern Ireland</a>, <a href="https://www.scottishwater.co.uk/Help-and-Resources/Document-Hub/Business-and-Developers/Byelaws-and-Trade-Effluent">byelaws in Scotland</a>, categorise the risk to health posed by potential contaminates by fluid categories. There are five in total, the lowest being 1 (wholesome water) and the highest 5 (a serious health hazard).</p><p>Fluid category 4 is something which poses a significant health hazard. Examples include carcinogens, pesticides and environmental organisms of potential health significance.</p><p><img src="/images/topics/screenshot_2023-02-21_at_12.43.00.png" class="img-responsive" style="width: 90%; float: none; margin-left: auto; margin-right: auto;" loading="lazy"></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Where can an RPZ valve be installed as point of use backflow protection?

<h1 id="where-can-an-rpz-valve-be">Where can an RPZ valve be installed as point of use backflow protection?</h1><hr><p>If a system in your premises has been categorised as fluid category 4 or less by your water undertaker, then an RPZ valve may be an appropriate form of point of use backflow protection. For further information consult the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a>.</p><p><strong>Please note:</strong></p><ul><li><p>Only RPZ valves installed and tested in accordance with the RPZ AIM will be considered as providing backflow protection.</p></li></ul><ul><li><p>To show they are functioning satisfactorily all RPZ valves are required to be regularly tested by a competent RPZ tester. Test intervals are set by the local water undertaker. Whilst test intervals may vary, they will be at least annually.</p></li></ul><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

An RPZ valve is installed at premises I am responsible for, what do I need to know?

<h1 id="an-rpz-valve-is-installed-at">An RPZ valve is installed at premises I am responsible for, what do I need to know?</h1><hr><p>If there is an RPZ valve installed at a premises you are responsible for, the things you need to do include:</p><ul><li><figure class="img-responsive" style="float: right; width: 253.844px; margin-left: 30px; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/front_cover.png" style="width: 100%"></figure><p>Familiarise yourself with the RPZ AIM</p></li><li><div></div><p>Make sure the local water undertaker has been notified the valve exists and has granted consent and familiarise yourself with the conditions of consent</p><div></div></li><li><p>Confirm the valve has been installed and tested in accordance with the AIM and the conditions of consent issued by the local water undertaker</p></li><li><div></div><p>Ensure the valve is ‘in test’ – it has been tested within the timeframe specified in the condition of consent, by a competent tester using equipment which meets the required minimum specification and satisfies all the appropriate clauses of the RPZ AIM.</p></li><li><p>Make certain a copy of the test report has been sent to the local water undertaker within the required timescales</p></li><li><p>As part of your maintenance procedures consider maintaining a technical file</p></li><li><p>Notify the local water undertaker if you plan on any alterations to the plumbing on site including removing, relocating or replacing the RPZ valve</p></li></ul><p>An information leaflet highlighting things those responsible for plumbing systems should be aware of if thinking about installing or already have RPZ valves installed can be found&nbsp;<a href="/publications/information-leaflets/">here</a>.</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Thinking about installing an RPZ valve at premises you are responsible for what do you need to know?

<h1 id="thinking-about-installing-an-rpz-valve">Thinking about installing an RPZ valve at premises you are responsible for what do you need to know?</h1><hr><p>Potential users of RPZ valves must be aware that water undertaker’s consent will always be conditional upon installation, commissioning and compliance testing requirements.</p><figure class="img-responsive" style="float: right; width: 199.844px; margin-left: 15px; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/front_cover.png" style="width: 100%"></figure><p>If you are thinking about an RPZ valve installed at premises you are responsible for, things you need to do include:</p><ul><li><p>Speaking with the local water undertakers to find out whether you need an RPZ valve and if so where, and the valve, you are planning to install is suitable</p></li><li><div><div></div></div><p>Notify the local water undertaker</p><div><div></div></div></li><li><p>Familiarise yourself with the RPZ AIM,</p></li><li><div><div></div></div><p>Consider whether an RPZ valve is right for you – consent to install will always be conditional on ongoing testing requirements.</p></li></ul><p>An information leaflet highlighting things those responsible for plumbing systems should be aware of if thinking about installing or already have RPZ valves installed can be found&nbsp;<a href="/publications/information-leaflets/">here.</a></p><p><br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

I have just received a letter telling me an RPZ valve needs testing - what does this mean and what do I have to do?

<h1 id="i-have-just-received-a-letter">I have just received a letter telling me an RPZ valve needs testing - what does this mean and what do I have to do?</h1><hr><p>It means there is an RPZ valve on-site which needs to be compliance tested by a competent RPZ tester no later than the test due date in order to comply with the conditions of consent which permitted its installation.</p><p>One way to identify a competent RPZ tester is to search using the <a href="https://www.watersafe.org.uk/">WaterSafe</a> website.</p><p>It is important to act as failure to comply with the requirements specified as a condition of consent may result in the water undertaker taking enforcement action which may include temporarily disconnecting the water supply to the premises and requiring the removal of the RPZ valve. Reconnection shall only be with the agreement of the water undertaker</p><p>Contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Who do I contact if I have any questions about RPZ valves?

<h1 id="who-do-i-contact-if-i">Who do I contact if I have any questions about RPZ valves?</h1><hr><p>If you cannot find the answer you are looking for here, please refer to the local water undertaker for further advice. Contact details can be found on the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">contact’s page</a> .<br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Who can install an RPZ valve?

<h1 id="who-can-install-an-rpz-valve">Who can install an RPZ valve?</h1><hr><p>There are no legal restrictions on who can install an RPZ valve. But anyone installing one should be competent to do so and the valve installed and tested in accordance with all the condition of consent which apply.</p><p>Water undertakers recommend a competent installer, such as an approved contractor, is engaged to undertake this work.</p><p>If there are any questions about the conditions of consent, contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.</p><p><br></p><figure class="img-responsive" style="min-width: auto; min-height: auto;"><img src="/images/topics/acs_logos.png" style="width: 100%"></figure><p><br></p><p><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

How should an RPZ valve be installed?

<h1 id="how-should-an-rpz-valve-be">How should an RPZ valve be installed?</h1><hr><p>The installation requirements for RPZ valves will be set out in the conditions of consent.</p><p>As a minimum they will include compliance with the installation requirements set out in section 4 of the RPZ AIM</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Who can remove an RPZ valve?

<h1 id="who-can-remove-an-rpz-valve">Who can remove an RPZ valve?</h1><hr><p>There are no legal restrictions on who can remove an RPZ valve. But anyone removing one should be competent to do so, for example an approved contractor, and the alteration be in compliance with the requirements of the water fittings regulations in <a href="https://www.legislation.gov.uk/uksi/1999/1148/contents">England, Wales</a> and <a href="https://www.legislation.gov.uk/nisr/2009/255/contents/made">Northern Ireland</a>, <a href="https://www.scottishwater.co.uk/Help-and-Resources/Document-Hub/Business-and-Developers/Byelaws-and-Trade-Effluent">byelaws in Scotland</a>.</p><p>The local water undertaker is also required to be notified</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Where can I find further information about a water undertaker's RPZ valve policy?

<h1 id="where-can-i-find-further-information">Where can I find further information about a water undertaker's RPZ valve policy?</h1><hr><p>Please refer to the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker's</a> website for further information.</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is notification and why do I have to notify?

<h1 id="rpz-what-is-notification-and-why">What is notification and why do I have to notify?</h1><hr><p>Providing water undertakers with advanced notice of most types of proposed plumbing work is a legal obligation under the water fittings regulations in <a href="https://www.legislation.gov.uk/uksi/1999/1148/contents">England, Wales</a> and <a href="https://www.legislation.gov.uk/nisr/2009/255/contents/made">Northern Ireland</a>, <a href="https://www.scottishwater.co.uk/Help-and-Resources/Document-Hub/Business-and-Developers/Byelaws-and-Trade-Effluent">byelaws in Scotland</a>. If a non-domestic premises has a mains water supply, the plumbing work that can be undertaken on-site without notification is very limited and maybe even further restricted by the conditions of supply.</p><p>It is a requirement of the RPZ AIM that prior notice be given for the installation of all RPZ valves. Details of the proposed work/installation shall be sent to the relevant water undertaker no less than 10 working days before work is due to start. Installing or using RPZ valves without the required consent could result in enforcement action being taken by the water undertaker.</p><p>Potential users of RPZ valves should be aware a water undertaker’s consent will always be conditional upon installation, commissioning and compliance testing requirements. An information leaflet highlighting things those responsible for plumbing systems should be aware of if thinking about installing or already have RPZ valves installed can be found&nbsp;in the Things you need to know about RPZ valves&nbsp;<a href="/publications/information-leaflets/">information leaflet.</a><br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

When do I notify the installation or relocation of an RPZ valve?

<h1 id="when-do-i-notify-the-installation">When do I notify the installation or relocation of an RPZ valve?</h1><hr><p>Details of the proposed work/installation shall be sent to the relevant water undertaker no less than 10 working days before work is due to start. Installing or using RPZ valves without the required consent could result in enforcement action being taken by the water undertaker.</p><p>An information leaflet highlighting things those responsible for plumbing systems should be aware of if thinking about installing or already have RPZ valves installed can be found&nbsp; in the Things you need to know about RPZ valves <a href="/publications/information-leaflets/">information leaflet.</a></p><div><p><strong>Please note</strong> that failure to provide the minimum level of information required may delay consent. Contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.</p></div><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

How do I notify the installation of an RPZ valve?

<h1 id="how-do-i-notify-the-installation">How do I notify the installation of an RPZ valve?</h1><hr><p>Identify the local water undertaker using the company contacts page . Complete their notification form and submit to the address provided.</p><p>Water undertakers may withhold or grant consent. Consent for the installation of a RPZ valve will always be subject to conditions. These may include specific requirements in addition to the general requirements set out in the RPZ AIM, all conditions set shall be complied with.</p><p><strong>Please note</strong> that failure to provide the minimum level of information required may delay consent. Please contact the&nbsp;<a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a>&nbsp;for further information. <br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Do I still need to notify if I use an approved contractor?

<h1 id="do-i-still-need-to-notify">Do I still need to notify if I use an approved contractor?</h1><hr><p>Approved contractors are exempt from notifying certain plumbing work. However, this exemption does not include the construction of new premises or the installation of a new high risk system (fluid category 4 or 5).</p><p>In the case of existing high risk installations, although some approved contractor schemes do not require their members to notify the installation of an RPZ valve the majority are required to do so as part of their scheme terms and conditions. <strong>Installation of an RPZ valve in Scotland and Northern Ireland is always notifiable.</strong></p><p>Those not required to notify are nevertheless encouraged to do so. This is to assist their customers as they, not the installer, will be responsible for the RPZ once installed and have to comply with the RPZ AIM</p><p>In order for the valve to be consider as compliant or ‘in test’ an on-site commissioning and compliance test report have to be submitted to the local water undertaker and test intervals for subsequent testing confirmed by the water undertaker.</p><div><p><br></p></div><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Do all water undertakers use the same notification form?

<h1 id="do-all-water-undertakers-use-the">Do all water undertakers use the same notification form?</h1><hr><p>No, therefore it is important to use a water undertaker’s forms especially when submitting information electronically</p><p>Details of the minimum information needed by a water undertaker, for consent to install a RPZ valve, are set out in regulation 5 they are also provided appendix 2 of the RPZ AIM. Please note that failure to provide the minimum level of information required may delay consent.</p><p>Contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.</p><hr><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What changes should be notified to the local water undertaker?

<h1 id="what-changes-should-be-notified-to">What changes should be notified to the local water undertaker?</h1><hr><p>Changes to an existing RPZ valve which are required to be notified will be listed in the condition of consent letter issued by the local water undertaker.</p><p>These could include, but are not limited to:</p><div><div><ul><li><div><div></div></div><p>Changes in location</p></li><li><p>Substitution of a RPZ valve</p></li><li><p>Removal of an RPZ valve</p></li><li><p>Any other changes to plumbing installations.</p></li></ul></div></div><div><div><p>&nbsp;</p></div></div><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is means by conditions of consent?

<h1 id="what-is-means-by-conditions-of">What is means by conditions of consent?</h1><hr><p>Where the water fittings regulations in <a href="https://www.legislation.gov.uk/uksi/1999/1148/contents" target="_blank">England, Wales</a> and <a href="https://www.legislation.gov.uk/nisr/2009/255/contents" target="_blank">Northern Ireland</a>, <a href="https://www.scottishwater.co.uk/Help-and-Resources/Document-Hub/Business-and-Developers/Byelaws-and-Trade-Effluent" target="_blank">byelaws in Scotland</a> apply advanced notice is required for most types of proposed plumbing work.</p><p>Water undertakers have 10 working days to respond. They can withhold or grant consent, which is their official approval for the installation of water fittings. Where consent is conditional these requirements must be adhered to.</p><p>In the case of RPZ valves, where consent is granted, it will always be conditional. Failure to comply with the requirements specified as a condition of consent may result in the water undertaker taking enforcement action which may include temporarily disconnecting the water supply to the premises and requiring the removal of the RPZ valve. Reconnection shall only be with the agreement of the water undertaker.</p><div><p>Please contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker </a>for further information.</p></div><p>&nbsp;</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What conditions of consent for RPZ valve installation can be expected?

<h1 id="what-conditions-of-consent-for-rpz">What conditions of consent for RPZ valve installation can be expected?</h1><hr><p>In the case of RPZ valves conditions which could apply include, but are not limited to:</p><ul><li><p>Compliance with the requirements of the RPZ AIM</p></li><li><p>Site specific installation requirements</p></li><li><p>Satisfactory commissioning and compliance testing and reporting</p></li><li><p>On-going compliance testing and reporting at set intervals</p></li><li><p>Notification of any changes, such as relocating the valve</p></li><li><p>Circumstances which would require the removal of the valve.</p></li></ul><div><p>If there are any questions relating to the approval granted, please contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.<br><br></p></div><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Where can conditions of consent be found?

<h1 id="where-can-conditions-of-consent-be">Where can conditions of consent be found?</h1><hr><p>The conditions of consent will be found in the consent letter issued by the local water undertaker. This will have been sent to the address listed in the advanced notification.</p><p>If there are any questions relating to the approval granted, please contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.<br></p><hr><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Where can the consent reference number be found?

<h1 id="where-can-the-consent-reference-number">Where can the consent reference number be found?</h1><hr><p>The consent reference number will be found in the consent letter issued by the local water undertaker. This will have been sent to the address listed in the advanced notification.</p><div><p>If there are any questions relating to the approval granted, please contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.<br><br></p></div><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Why do RPZ valve need regular testing?

<h1 id="why-do-rpz-valve-need-regular">Why do RPZ valve need regular testing?</h1><hr><p>All mechanical devices require routine maintenance. As a mechanical backflow prevention device protecting against contamination up to and including fluid category 4 fluids (contaminants which poses a significant health hazard) it is important to ensure, both those on site and the drinking water network, continue to be protected by regularly verifying the valve is functioning satisfactorily.</p><p>Test intervals will be set by the local water undertaker as a condition of consent. Whilst these may vary, they will be at least annually.</p><p><strong>Please note:</strong></p><ul><li><p>Only RPZ valves installed and tested in accordance with the RPZ AIM will be considered as providing backflow protection.</p></li></ul><p><img src="/images/topics/faqs/12-2018-rpz_testing_assembly_txt_.png" class=" img-responsive" style="display: block; user-select: none; margin: auto; cursor: zoom-in; width: 90%;"></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is meant by due date?

<h1 id="what-is-meant-by-due-date">What is meant by due date?</h1><hr><p>In addition to commissioning testing all RPZ valves require compliance testing. This is an onsite safety test to verify the valve is installed correctly and functioning satisfactorily.</p><p>Compliance testing shall be carried out at least annually or at more frequent intervals as specified by the water undertaker. The test due date is the date by which the next compliance test for a RPZ valve should be completed. Both test due date and compliance testing intervals are set by the water undertaker and cannot be changed without their consent.</p><p>To be considered as valid or ‘in test’ compliance testing of existing RPZ valves should be carried out no later than the test due date. In the case of RPZ valves tested annually compliance testing can be carried out no earlier than 30 days prior to the test due date. Early testing of other RPZ valves may be undertaken with the agreement of the water undertaker</p><figure class="img-responsive" style="float: none; margin-left: auto; margin-right: auto; width: 90%; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/12-2018-rpz_testing_assembly_txt_.png" style="width: 100%"></figure><p><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Can a test interval be changed?

<h1 id="can-a-test-interval-be-changed">Can a test interval be changed?</h1><hr><p>Test intervals can only be changed with the agreement of the local water undertaker.</p><p>Please note whilst they may be willing to work with customers to accommodate practical consideration, such as shutdowns and aligning test due dates for RPZ valves on site it is unlikely, they will be willing to extend them.</p><p>For further information contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a>.</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What happens if an RPZ valve is tested early?

<h1 id="what-happens-if-an-rpz-valve">What happens if an RPZ valve is tested early?</h1><hr><p>The water undertaker may be willing to accept a valid compliance test report for testing carried out earlier than 30 days prior to the test due date, but this may result in the test due date for subsequent testing is brought forward.</p><p>For further information contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a>.</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="faqs">FAQs</h1><!--PARTBREAK--><p><br></p>

What happens if an RPZ valve is out of test?

<h1 id="what-happens-if-an-rpz-valve">What happens if an RPZ valve is out of test?</h1><hr><p>Failure to comply with the requirements specified as a condition of consent may result in the water undertaker taking enforcement action which may include temporarily disconnecting the water supply to the premises and requiring the removal of the RPZ valve. Reconnection shall only be with the agreement of the water undertaker</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

I cannot get a RPZ tester to test the RPZ valve(s) before the test due date, what should I do?

<h1 id="i-cannot-get-a-rpz-tester">I cannot get a RPZ tester to test the RPZ valve(s) before the test due date, what should I do?</h1><hr><p>Contact your <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> immediately, the relevant contact details will also be in the conditions of consent letter.<br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

The test due date has passed, and I have not been able to get a RPZ tester to complete the test, what should I do?

<h1 id="the-test-due-date-has-passed">The test due date has passed, and I have not been able to get a RPZ tester to complete the test, what should I do?</h1><hr><p>Contact your <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> immediately, the relevant contact details will also be in the conditions of consent letter.<br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Who can test an RPZ valve?

<h1 id="who-can-test-an-rpz-valve">Who can test an RPZ valve?</h1><hr><p>RPZ valves should only be tested by those recognised by the local water undertaker as having sufficient knowledge, experience and skills to enable them to carry out on-site commissioning and/or compliance testing.</p><p>Unless recognised by the local water undertaker, on a site specific basis, to be considered as competent a tester must have a recognised qualification in RPZ valve commissioning and/or compliance testing, and should be a member of a recognised RPZ tester approved contractor scheme. They will need to be able to demonstrate to the satisfaction of the local water undertaker, their test equipment is suitably calibrated and they have appropriate liability insurance.</p><p><img src="/images/topics/faqs/sect_sch.png" class=" img-responsive" style="display: block; user-select: none; margin: auto; background-color: rgb(230, 230, 230); transition: background-color 300ms; width: 400px;">&nbsp;&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What do I do if the RPZ tester will not issue the commissioning/compliance test report until their invoice is paid?

<h1 id="what-do-i-do-if-the">What do I do if the RPZ tester will not issue the commissioning/compliance test report until their invoice is paid?</h1><hr><p>Mindful the person responsible for the RPZ valve has a legal obligation to ensure the valve is tested in accordance with the conditions of consent, the local water undertaker will consider this to be a matter between the RPZ tester and the organisation which engaged their services.<br></p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is meant by a competent RPZ tester?

<h1 id="what-is-meant-by-a-competent">What is meant by a competent RPZ tester?</h1><hr><p>The commissioning and compliance testing of RPZ valves should only be undertaken by someone who is competent.</p><p>To be considered as competent by the local water undertaker RPZ testers must have a recognised qualification in RPZ valve commissioning and/or compliance testing from a recognised training provider.</p><p>Unless recognised on a site specific basis, they should be a member of a recognised RPZ tester approved contractor scheme and must be able to demonstrate their test equipment satisfies the minimum specification and also have appropriate liability insurance.</p><figure class="img-responsive" style="float: none; margin-left: auto; margin-right: auto; min-width: auto; min-height: auto; width: 400px;"><img src="/images/topics/faqs/sect_sch.png" style="width: 100%"></figure><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Do you have to use someone who belongs to a RPZ tester scheme to test RPZ valves?

<h1 id="do-you-have-to-use-someone">Do you have to use someone who belongs to a RPZ tester scheme to test RPZ valves?</h1><hr><p>It is not compulsory to use someone who belongs to an approved contractor scheme to test RPZ valves. However, the local water undertaker has to be satisfied a tester is competent.</p><p>If the RPZ tester used is not a scheme member it is likely the local water undertaker will require further information before accepting the test report submitted by them as valid. For example, the tester will be likely to be asked to demonstrate:</p><div><ul><li><p>They have satisfactorily completed a recognised qualification in RPZ valve commissioning and/or compliance testing from a recognised training provider</p></li><li><p>Their test equipment satisfies the minimum specification</p></li><li><p>They have appropriate liability insurance.</p></li></ul><p><br></p></div><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Our maintenance technician tests all our RPZ valves, but only these, can they become recognised on a site specific basis?

<h1 id="our-maintenance-technician-tests-all-our">Our maintenance technician tests all our RPZ valves, but only these, can they become recognised on a site specific basis?</h1><hr><p>Yes, the RPZ AIM makes provision to recognise someone on a site specific basis. However, the local water undertaker has will have to be satisfied they are competent so will require further information before accepting the test report submitted by them as valid. For example, the company will be likely to be asked to demonstrate:</p><div><ul><li><p>The tester has a qualification in RPZ valve commissioning and/or compliance testing recognised by the local water undertaker.</p></li><li><p>Their test equipment satisfies the minimum specification.</p></li><li><p>The company has appropriate liability insurance.</p></li></ul></div><p>The water undertaker may also wish to witness the technician testing.<br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

How do I become recognised as an RPZ tester?

<h1 id="how-do-i-become-recognised-as">How do I become recognised as an RPZ tester?</h1><hr><figure class="img-responsive" style="float: right; width: 415px; margin-left: 10px; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/sect_sch.png" style="width: 100%"></figure><p>The easiest way to become recognised is to join an approved contractor RPZ sector scheme.</p><p>For further information contact your <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a>.</p><p><br></p><p><br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Do you need to join an approved contractor RPZ tester scheme?

<h1 id="do-you-need-to-join-an">Do you need to join an approved contractor RPZ tester scheme?</h1><hr><p>It is not compulsory for RPZ testers to join an approved contractor scheme. Joining a scheme will however mean that a tester will not be asked to demonstrate:</p><ul><li><p>They have satisfactorily completed a qualification in RPZ valve commissioning and/or compliance testing recognised by the local water undertaker.</p></li><li><div><div></div></div><p>Their test equipment is calibrated by a pressure calibration service accredited by UKAS.</p></li><li><p>They have appropriate liability insurance.<br></p></li></ul><p>There may be other advantages to scheme membership, please refer to your local scheme for further information.</p><figure class="img-responsive" style="float: none; margin-left: auto; margin-right: auto; width: 400px; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/sect_sch.png" style="width: 100%"></figure><p><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Where can I find a competent RPZ tester?

<h1 id="where-can-i-find-a-competent">Where can I find a competent RPZ tester?</h1><hr><p>Two of the ways, there may be others, to find a competent RPZ tester include searching the lists of those approved contractor schemes which have an RPZ tester sector, or the WaterSafe website www.watersafe.org.uk.</p><p>To locate a RPZ tester using the WaterSafe website search, select ‘RPZ valves testers’ from the service option and enter the postcode for the premises where the valve is located. The results generated will listed by distance from this location.</p><figure class="img-responsive" style="float: none; margin-left: auto; margin-right: auto; width: 400px; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/sect_sch.png" style="width: 100%"></figure><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Where do I get my test equipment calibrated and how often?

<h1 id="where-do-i-get-my-test">Where do I get my test equipment calibrated and how often?</h1><hr><figure class="img-responsive" style="float: right; width: 400px; margin-left: 30px; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/rpz_installation_checklist_with_border_page_1.png" style="width: 100%"></figure><p>The RPZ AIM requires RPZ test kits to conform with a minimum specification, which includes being calibrated by a pressure calibration service accredited by UKAS. Please refer to the UKAS website for details of accredited organisations.</p><ol><li><p>The accreditation schedule for the calibration organisation should include calibrating pressure differential measuring equipment in units of at least 1 kPa (or equivalent) or 0.5 kPa (or equivalent) as appropriate.</p></li><li><p style="text-align: start;">The RPZ test equipment should have an accuracy tolerance of: • Mechanical test equipment only of ±1.378 kPa (or equivalent) • Digital test equipment only ± 1 kPa (or equivalent)</p></li><li><p style="text-align: start;">Calibration certificates shall include details of the accuracy for differentials at 0.5 kPa (where appropriate), 7 kPa, 14 kPa and 34 kPa.</p></li></ol><p>Test kits should be calibrated at least annually or, where specified by the kit manufacturer more frequently.</p><p><br></p><!--PARTBREAK--><h1 id="arrangements-offering-a-physical-air-gap">FAQs</h1><!--PARTBREAK--><p><br></p>

What is a commissioning test?

<h1 id="what-is-a-commissioning-test">What is a commissioning test?</h1><hr><p>This is an on-site procedure to confirm a newly installed or repaired RPZ valve is installed and functioning in accordance with the requirements of the RPZ AIM</p><p>It is required by water undertakers before an RPZ valve can be brought into service. It applies to all newly installed RPZ valves and any valves which have been relocated, replaced, had components changed or RPZ valve installation which have been dismantled in anyway.</p><p>Full details are provided in section 5 of the RPZ AIM.</p><p><img src="/images/topics/faqs/12-2018-rpz_testing_assembly_txt_2.png" class=" img-responsive" style="display: block; user-select: none; margin: auto; cursor: zoom-in; background-color: rgb(230, 230, 230); transition: background-color 300ms; width: 90%;"></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

When is a commissioning test needed?

<h1 id="when-is-a-commissioning-test-needed">When is a commissioning test needed?</h1><hr><p>This is an on-site procedure to confirm a newly installed or repaired RPZ valve is installed and functioning in accordance with the requirements of the RPZ AIM.</p><p>It is required by water undertakers before an RPZ valve can be brought into service. It applies to all newly installed RPZ valves and any valves which have been relocated, replaced, had components changed or RPZ valve installation which have been dismantled in anyway.</p><div><p>Full details are provided in section 5 of the RPZ AIM.</p></div><p>&nbsp;</p><p><br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

When is a compliance test needed?

<h1 id="when-is-a-compliance-test-needed">When is a compliance test needed?</h1><hr><p>An on-site compliance test is required following commissioning testing and at set intervals thereafter.</p><p>In the case of existing RPZ valves the local water undertaker will advise when compliance testing is required. Those tested annually should not be tested earlier than 30 days prior to the test due date without the agreement of the water undertaker.</p><p>Full details are provided in section 5 of the RPZ AIM.</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Do all water undertakers use the same test report forms?

<h1 id="do-all-water-undertakers-use-the">Do all water undertakers use the same test report forms?</h1><hr><p>No, therefore it is important to use a <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">water undertaker’s forms</a> especially when submitting information electronically.</p><p>Details of the minimum information needed by a water undertaker in a test report is provided appendix 3 of the RPZ AIM. Please note that failure to provide the minimum level of information required may result in rejection.</p><p>Contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.</p><p>&nbsp;</p><hr><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is the minimum information required in a test report?

<h1 id="what-is-the-minimum-information-required">What is the minimum information required in a test report?</h1><hr><p>The minimum information required in a test report will be set out in a <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertakers</a> paperwork. This will include but not be limited to the following.</p><div style="margin-left:20px;"><p>Information about the tester:</p></div><div><ul><li><div></div><p>tester’s name</p></li><li><p>tester’s contact details including address, telephone number and email address</p></li><li><p>tester’s signature (water undertakers may accept electronic signatures)</p></li><li><p>tester’s scheme name and membership number</p></li></ul></div><div style="margin-left:20px;"><p>Information about premises at which the RPZ valve is located:</p></div><div><ul><li><div></div><p>the address</p></li><li><p>telephone number</p></li><li><p>name and email address of the person responsible for the RPZ</p></li></ul></div><div style="margin-left:20px;"><p>Information about the installation including:</p></div><div><ul><li><div></div><p>the location of the RPZ valve on site</p></li><li><p>a description of the water system which the RPZ valve forms part of including details of the type of equipment downstream of the RPZ valve.</p></li><li><p>confirmation that consent to install has been granted</p></li><li><p>confirmation that RPZ valve is installed in accordance with the conditions of consent</p></li><li><p>date of installation/commissioning</p></li><li><p>date of last test</p></li></ul></div><div style="margin-left:20px;"><p>Details relating to the RPZ valve including:</p></div><div><ul><li><div></div><p>the name of the manufacturer</p></li><li><p>the model</p></li><li><p>the size</p></li><li><p>the serial number</p></li></ul></div><div style="margin-left:20px;"><p>Details relating to the testing including:</p></div><div><ul><li><div></div><p>test due date</p></li><li><p>date of test</p></li><li><p>test results, including in the case of a test failure details of any observations made and action taken.</p></li><li><p>reason for test</p></li></ul></div><div style="margin-left:20px;"><p>Information about the test equipment used including:</p></div><div><ul><li><div><p>the make of test kit o test kit serial number</p></div></li><li><p>calibration certificate</p></li><li><p>confirmation of its suitability for system being tested (e.g. hot water)</p></li></ul></div><div><p>&nbsp;</p><p>For further details contact the local water undertaker.</p></div><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What is a valid commissioning/compliance test report?

<h1 id="what-is-a-valid-commissioningcompliance-test">What is a valid commissioning/compliance test report?</h1><hr><p>Before an RPZ valve can be brought into service the local water undertaker will require all newly installed RPZ valves, including replacement RPZ valves, satisfy both on-site commissioning and compliance testing, plus where required flushing and disinfection.</p><div><p>To be considered by the local water undertaker as being valid a test report must be:</p></div><ul><li><p>Completed, signed and dated by a RPZ tester they consider to be&nbsp;competent&nbsp;using test equipment satisfying the minimum specification</p></li><li><p>Submitted in an&nbsp;acceptable format</p></li><li><p>Provide the&nbsp;minimum&nbsp;information required</p></li><li><p>Be received by the local water undertaker within 10 working days of test – unless the valve fails test in which case specific reporting requirements apply.</p></li></ul><p>For further information please refer to the RPZ AIM.</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="faqs">FAQs</h1><!--PARTBREAK--><p><br></p>

Can a water undertaker refuse to accept a test report?

<h1 id="can-a-water-undertaker-refuse-to">Can a water undertaker refuse to accept a test report?</h1><hr><p>Yes, a water undertaker can consider a test report to be invalid and decline to accept it.</p><div><p>To be considered by the local water undertaker as being valid a test report must be:</p></div><ul><li><p>Completed, signed and dated by a RPZ tester they consider to be competent using test equipment satisfying the minimum specification</p></li><li><p>Submitted in an acceptable format</p></li><li><p>Provide the minimum information required</p></li><li><p>Be received by the local water undertaker within 10 working days of test – unless the valve fails test in which case specific reporting requirements apply.</p></li></ul><p>For further information please refer to the RPZ AIM.</p><p><br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What do I do if a commissioning/compliance test report is not accepted as valid?

<h1 id="what-do-i-do-if-a">What do I do if a commissioning/compliance test report is not accepted as valid?</h1><hr><p>If a test report is not accepted by the local water undertaker, the valve is considered to be out of test and so should be retested as soon as possible. Please note the local water undertaker reserves the right to take enforcement action in such circumstances.</p><p>For further information contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker.</a></p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

If an RPZ fails any part of a compliance test does testing need to be completed?

<h1 id="if-an-rpz-fails-any-part">If an RPZ fails any part of a compliance test does testing need to be completed?</h1><hr><p>Unless there are exceptional circumstances, such as health and safety concerns, to help the local water undertaker to determine what action is required there is an expectation all testing will be completed.</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What happens if an RPZ valve fails compliance testing?

<h1 id="what-happens-if-an-rpz-valve">What happens if an RPZ valve fails compliance testing?</h1><hr><p>If an RPZ valve fails compliance testing the next steps depend on whether the valve can be repaired and retested and how quickly this can be done.</p><p>If it is repaired and satisfactorily retested immediately then it may be returned to service. The test failure and successful retest, together with details of the repairs undertaken and any suspected contributing factors to the failure, will be reported by the RPZ tester to the water undertaker within 24 hours.</p><p>If the RPZ valve cannot be repaired and satisfactorily retested immediately, then the tester will notify the water undertaker straight away. The water undertaker will confirm what action is to be taken. The RPZ tester will notify you what action is required.</p><figure class="img-responsive" style="float: none; margin-left: auto; margin-right: auto; width: 70%; min-width: auto; min-height: auto;"><img src="/images/topics/faqs/12-2018-rpz_testing_assembly_txt_.png" style="width: 100%"></figure><p><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What happens if an RPZ valve fails commissioning testing?

<h1 id="what-happens-if-an-rpz-valve">What happens if an RPZ valve fails commissioning testing?</h1><hr><p>If an RPZ valve fails commissioning testing the RPZ tester has to notify the water undertaker within 24 hours. The valve itself will remain isolated until any action required by the water undertaker have been carried out. The RPZ tester will notify you what action is required.</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What do I do if a failed RPZ valve has to be replaced?

<h1 id="what-do-i-do-if-a">What do I do if a failed RPZ valve has to be replaced?</h1><hr><p>Immediately contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a> for further information.<br><br></p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

What do I do when a failed RPZ valve has been repaired?

<h1 id="what-do-i-do-when-a">What do I do when a failed RPZ valve has been repaired?</h1><hr><p>The local water supplier will have confirmed what action should be taken when the RPZ tester notified them of the failure. The RPZ tester should have notified the person responsible for the valve or their representative what the local water undertaker wanted to happen.</p><p>If not or you have any further questions, contact the <a href="https://www.waterregsuk.co.uk/contacts/water-company-contacts/">local water undertaker</a>.</p><p>&nbsp;</p><!--PARTBREAK--><h1 id="topics">FAQs</h1><!--PARTBREAK--><p><br></p>

Regulations & Byelaws which apply include but are not limited to:


  • Regulation 3 England & Wales

  • Regulation 3 Northern Ireland 

  • Byelaw 3 Scotland 

  • Regulation 4 England & Wales

  • Regulation 4 Northern Ireland 

  • Byelaw 4 Scotland 

  • Regulation 5 England & Wales

  • Regulation 5 Northern Ireland 

  • Byelaw 5 Scotland 

  • Regulation 2 England & Wales

  • Regulation 2 Northern Ireland 

  • Byelaw 2 Scotland 

  • Schedule 1

  • Schedule 2 paragraph 2

  • Schedule 2 paragraph 7

  • Schedule 2 paragraph 8

  • Schedule 2 paragraph 14

  • Schedule 2 paragraph 15 

  • Schedule 2 paragraph 24

  • Schedule 2 paragraph 30



  • Regulation 5 England & Wales

  • Regulation 5 Northern Ireland

  • Byelaw 5 Scotland

  • Schedule 2 paragraph 2

  • Schedule 2 paragraph 7

  • Schedule 2 paragraph 8

  • Schedule 2 paragraph 14

  • schedule 2 paragraph 15


Publications 


  • Water undertakers’ RPZ AIM

  • RPZ test equipment: minimum specification

  • Things you need to know about RPZ valves

  • Regulators' Specification for backflow

  • Full list

Back to all Topics


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