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Wet_Boots

Supreme Member

Posts: 3,882

Location: Metro NYC

11

Friday, June 29th 2012, 10:03pm

your AVB is something of an imposter - a lot of them get installed where a PVB should be

the actual approved application of the AVB is one for each zone, downstream of the zone valves

skintdigit

Unregistered

12

Friday, June 29th 2012, 10:14pm

Thank you, Wet_Boots. I've just been browsing the site and came upon the detailed description of the various cross-connection prevention devices here:

http://www.sprinklerwarehouse.com/articles.asp?id=187


I'll let my neighbor know about the recommended upgrade. I thought I was going over there to plug in his timer or replace a solenoid. Now I know a lot more about irrigation than I ever dreamed I would. Not quitting the day job, yet, though.

Thank you!

SD

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