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Monday, May 27th 2013, 11:05am

RPZ placement

I am designing a 12 valve sprinkler system utilizing an RPZ. Must the RPZ be placed upstream of all valves, or can it be located further downstream?


Supreme Member

Posts: 5,292

Location: Metro NYC


Monday, May 27th 2013, 11:20am

There isn't any part of a sprinkler system that is supposed to be located upstream of its backflow prevention. Is there something else connected to the water supply that figures into your question?


Active Member

Posts: 46

Location: Kansas City


Monday, May 27th 2013, 2:11pm

As Wetboots stated, the backflow preventer should be the first piece of the sprinkler system to get water. All of the zone valves need to be downstream from the backflow preventer.

This post has been edited 1 times, last edit by "Wet_Boots" (May 27th 2013, 5:31pm)

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