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Old 09-26-2013, 05:50 PM   #1
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anti siphon valve

I'd like to connect an "anti siphon" valve outside the house just before my 3/4 pipe goes to the valves. I'd like this "anti siphon" valve to have a "port" where I can connect my compressor to "blow out" the lines. where can I get such a thing? or is there some other way to get some air in? I want to "blow out" each zone including valve so there is no water in there to freeze.


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Old 09-26-2013, 07:17 PM   #2
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anti siphon valve

Need a picture of your set up.
Just adding on of these in a tee will work.

When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
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Old 09-26-2013, 10:17 PM   #3
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anti siphon valve

Search for backflow preventer. Watts makes one.

The easiest way is to add a hose spigot on the line and adapt an air line fitting. That's what my irrigation company does when they blow out my system.


Last edited by djlandkpl; 09-27-2013 at 06:52 AM. Reason: Added link
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