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RPZ valves

To protect your drinking water supply from hazards that are a fluid category four you can have a reduced pressure zone valve, or a RPZ installed. RPZ valves help protect drinking water supplies from chemicals or contaminants that could cause a health hazard (e.g. pesticides or biological organisms). You can read more about fluid categories here.

Water Regs UK have a leaflet (an ‘approved installation method’ (or AIM)), which explains the installation, maintenance and testing of RPZ valves, as well training requirements for the tester.

If you want to install an RPZ valve, there is a ‘application form’ to complete. This can be obtained here.

Installers / Testers:

For installations and testing being carried outside of normal working hours, notification should be provided at least 48 hours in advance by emailing rpz@uuplc.co.uk or calling 0345 672 2888. This is so that should there be a failure of other issue, we can have the appropriate personnel to give advice on any necessary mitigation that may be required.