Hi everyone -- I have a fill line that's tied into my sprinkler system. There are two backflow prevention devices on the line -- the one closer to the pool is electric/solenoid and the one prior (and higher) is manual.
The manually operated anti-siphon valve is leaking when open and so I'm looking to replace.
My first thought was that I wasn't sure why this system had two anti-siphon / back flow prevention devices. Couldn't I just yank the manual one out and rely solely on the electric one? Secondly, wouldn't my sprinkler system have an anti-siphon device further upstream somewhere?
From posting elsewhere, I've learned a couple of things:
- By code, I probably really should be using a reduced pressure back flow assembly. In addition to the electric anti-siphon device?
- I'm not sure that I should have PVC above-ground. At the very least I think it's supposed to be metal on the source side and silver-painted after. Or else enclosed. Not sure that this is a code violation, just a best practice.
For what it's worth, I'm in Southern California.