Calculators & Tools



Water Regs UK has developed free to use tools to assist designers and installers.



Important information

By using our tool(s), you agree that the information contained in the tool(s) is provided for information purposes only and does not constitute definitive compliance advice. 

You understand that whilst every effort has been made by Water Regs UK to ensure accurate functioning of the tool(s), each installation is dependent on specific site and/or installation circumstances. Installing in accordance with the parameters calculated by our app(s) does not guarantee compliance with all applicable laws, regulations and byelaws.  It is the sole responsibility of the user of the tool(s) to undertake all necessary testing of each installation to satisfy itself of compliance in each case.

By using our tool(s), you agree that we make no claims, warranties, representations, promises or guarantees about the accuracy, completeness, or adequacy of the information contained in, linked to, or referenced in our tool(s), our servers, or our affiliated web sites and their servers. Water Regs UK shall not be liable for any losses resulting from non-compliance of any installation with the applicable laws, regulations or byelaws and any such responsibility and liability is expressly disclaimed.


We use cookies to give you the best possible experience with Water Regs UK. Some are essential to provide website functions and ensure the website is secure. We also use cookies to help us understand how people use the site and to make improvements. Click "Accept All" to enable recommended settings or click "Manage cookies" to adjust your settings. For more details, see our Cookie Policy.