I just installed three anti-siphon valves(jar top,orbit) for a sprinkler system the main water line is 3/4 then goes into my manifold (pvc)3/4 schedule 40,usually when you turn on the water it comes to a stop where you re valves begin then you either open them manually or their set up through you re timer, the problem im having when i open the main water line the water goes straight through the valves without me even opening them my question is can it be to much pressure or what can the problem be? any info helps thank you
There's a small button on top of the elec valve, which is a manual override. Find it, and be sure it's turned all the way to the right, like tightening the cap on a bottle. This closes the override but doesn't affect the solenoid operation. If this isn't the problem, disconnect the control box from power, and see if the valves now are closed. Might be wired wrong, and the solenoids are stuck open because of always being powered. Too much pressure isn't the problem -- when a home is built in a place with abnormally high water pressure, pressure reducers are installed to diminish the pressure to workable levels.
As George mentioned, I'm wondering if you installed them backwards; it happens (I've done it anyway). The other unlikely possibility is that these valves default to open unless they are powered closed (so try powering them to close). If they power to shut-off and open when they lose power, then you probably want to send them back (you will end up with a flood every time your system goes down). The other possibility is you got a bad batch of valves. I would: - Go to manufacturers website and check their FAQ section - Go to manufacturers website and check the specs on your valve model (normally closed?) - Call the manufacturer with valve in front of you and have them trouble-shoot
another thing that can cause this is when assembeling the manifold it got filled full of rocks that are holding the diaphrams open
possibly they can give some insight on your problem.
