Unsure what an RPZ valve is, or if you still need one?

What’s an RPZ valve?

Reduced pressure zone (RPZ) valves are devices are used to protect drinking water supplies from contamination by substances which pose significant health hazards, such as carcinogenic chemicals.

If there are any high risk installations in a property you are responsible for then there maybe RPZ valves installed.  An RPZ installation can look like this →

If there are RPZ valves on a site you are responsible for you, then you have a legal obligation to check and make sure they are working properly at least annually.

This is typically done by providing the local water undertaker, by a set date, with a test report, prepared by competent RPZ tester using compliant test equipment. Valves which aren’t working correctly put those on site, and potentially in neighbouring properties, at risk. Failure to have RPZ valves tested could result in the local water undertaker taking enforcement action against you.

Do I still need one ?

If you are uncertain whether you still need an RPZ valve or want to replace it with a different form of backflow protection speak to your local water undertaker, they will be happy to assist. You can find out who your local water undertaker is here

An RPZ valve must never be removed without talking to your water undertaker first.

If you have any questions about RPZ valves, testers and testing please Ask Reg