RPZ FAQs: Testing


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

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.

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:

  • They have satisfactorily completed a recognised qualification in RPZ valve commissioning and/or compliance testing from a recognised training provider
  • Their test equipment is calibrated by a pressure calibration service accredited by UKAS.
  • They have appropriate liability insurance.



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.