RPZ FAQs: General

What is an AIM?

An installation method (AIM) is a procedure approved by Water undertakers.

The current version of the RPZ AIM, published in January 2020, is ‘AIM-08-01 Type BA device- verifiable backflow preventer with reduced pressure zone valve (RPZ)’. It provides procedures for both installing and testing of RPZ valves. It is approved the water undertakers in England, Scotland, Wales and Northern Ireland listed on page 2.

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