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Discussion Starter #1
I have this exact same pvb; this is a new house and I’ve never had any irrigation system before.

https://www.thespruce.com/thmb/dXj7...e-Vacuum-Breaker-58f127fa3df78cd3fc3c18e5.jpg

Couple of YouTube videos later I’m trying to turn her on for the spring!

But water keeps coming out the bottom! Just what am I doing wrong? Or maybe can someone walk me through what to do step by step?


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Maintenance / Locksmith
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270 Posts
Turn the water on slowly but 100%. Water will come out of back flow preventer valve for a few seconds and then stop. If the water does not stop....valve needs replacing and/or rebuilding.
 

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Discussion Starter #3
I think I have everything turned in correctly but the water still only flows out of the bottom… Is there supposed to be some sort of plugin the bottom thing?




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Maintenance / Locksmith
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270 Posts
Plug the open hole at the bottom. It may have been left open as a drain. Glue and/or screw in a piece of pipe or a threaded nipple so you can attach a shut off valve. The PRV may be plumbed backwards...........I have never seen one feed from the bottom and exit the top. Check for arrows on the valve for water flow.
 
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