Last updated: February 2024

RPZ FAQs: Testing

What is the minimum information required in a test report?

The minimum information required in a test report will be set out in a local water undertakers paperwork. This will include but not be limited to the following.
Information about the tester:
  • tester’s name
  • tester’s contact details including address, telephone number and email address
  • tester’s signature (water undertakers may accept electronic signatures)
  • tester’s scheme name and membership number
Information about premises at which the RPZ valve is located:
  • the address
  • telephone number
  • name and email address of the person responsible for the RPZ
Information about the installation including:
  • the location of the RPZ valve on site
  • 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.
  • confirmation that consent to install has been granted
  • confirmation that RPZ valve is installed in accordance with the conditions of consent
  • date of installation/commissioning
  • date of last test
Details relating to the RPZ valve including:
  • the name of the manufacturer
  • the model
  • the size
  • the serial number
Details relating to the testing including:
  • test due date
  • date of test
  • test results, including in the case of a test failure details of any observations made and action taken.
  • reason for test
Information about the test equipment used including:
  • the make of test kit o test kit serial number
  • calibration certificate
  • confirmation of its suitability for system being tested (e.g. hot water)


For further details contact the local water undertaker.


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Uncontrolled if downloaded. This is informative, non-statutory guidance and intended for general guidance purposes only; it is subject to change.

Compliance with this information should not be relied upon as guaranteeing no enforcement action will be taken by water undertakers. Water Regs UK accepts no liability for loss, indirect or consequential loss arising from or in connection with this guidance document.

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