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Old 06-26-2013, 10:45 AM
apbling apbling is offline
LawnSite Member
Join Date: Jun 2013
Location: Mosinee, WI
Posts: 1
Issues w/ valves/pressure switch/relay?

Hi All,

First off, I'm a homeowner and set up my sprinker system myself, with some supposed "professional" help from a friend of mine.

Anyway, I have a 1 1/4" sand point well, a 1 HP Red Cap jet pump, Rainbird SST600O timer and an orbit relay/pump starter. I originally had 5 orbit 1" anti-siphon valves on a header that sat above my pump. I set the pump pressure switch to open at just about dead head pressure in case of a valve failed to open. Last year I had 0 issues. This year, the wife had me re-pipe and beautify it a bit. I ran the same diameter pipe (1"), but instead of having the valves above the pump, they are now next to it in a nice enclosure. When the timer started the pump, it would pressure up and chatter the pump because the pressure switch kept kicking out. I figured the cheap orbit valves were sticky and opening slow. So I doubled checked all wiring and such, and ended up buying some 1" Hunter PGV jar type standard valves. I installed them. Now, the issue has gotten a bit better, but when I tell the timer to water, the relay kicks in immediately and the pump pressures up, but it seems like the valve hasn't opened quick enough so the pump kicks out a few times. Once the valve opens it's fine, but I don't like making the pump start and stop so many times in a short period of time. My "professional" buddy told me to bypass the switch and install a pressure relief valve. However, if the pump is dead heading for a few seconds while the valve is opening, I think every time I water it will be popping the relief open, which I really don't want either.

So, in summary, the only change I made since last year was take my header from on top of my pump and place it next to it at about the same elevation. I did end up adding a about 3 extra feet of 1" pipe and 2 elbows, but I have a hard time believe that is the issue.

At this point I am all out of ideas other than spending more money on a fancier timer that has a delay feature.

Any help is appreciated. Thanks!
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