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Sunday, March 28th 2004, 3:13pm

Naive question about backflow

not very handy fellow here. Sprinkler line broke last year, had new system put in with backflow. Last fall, I just shut off water and then drained system by running the cycles.

Today, I tried to turn system on, but can't do much 'cause after some air bursts, I get water running out of both outlets of the (vacuum-type) backflow preventer. [xx(] I know anything at all can be going on here, but wanted your thoughts as to what you would try first, or what you think is happening. (Am trying to track down my installer too, but Sundays in Salt Lake City aren't exactly working times for some reason...)



Advanced Member

Posts: 229

Location: USA


Sunday, March 28th 2004, 5:38pm

are your test valves open? You need to close these. Usually they are opened up for winter shutdowns


Monday, March 29th 2004, 11:28am

Yahoo! You mean I'm just unaware that these were open...I thought this was some pressue problem and so the backflow preventer doing its thing! I now have my sprinkler pressure running....and now another question too of course.

In the back of the yard, I still have old galvanized and old valves, to be updated "soon". I'm seeing a bunch of leakage in one of the older valves, clearly the from valve housing and not the pipe. I will read around on these postings, but am wondering what is usually replaced...just the whole valve, is that right?

Sincerely appreciate your help!!!

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