Joints on concealed pipework are likely to lose their integrity over time and therefore should only be considered where unavoidable.
All water fittings should be resistant to corrosion. In the case of backflow prevention devices and any water fittings which are not going to be readily accessible in addition to being corrosion resistant they should be manufactured from materials which are not susceptible to dezincification. For example, gunmetal or CR brass.
To prevent waste there needs to be provision to access any joints or water fittings which require maintenance, such as backflow prevention devices, valves which control the flow and any other operational fitting.
Water fittings considered to be concealed include those:
Buried in the ground
Installed below or embedded in floors
Installed in or behind wall finishes
Water fittings considered not to be concealed include those:
Installed below ground but not buried, such as in a chamber or basement room
Installed below floors or in walls which can be readily accessed
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.