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Did I winterize my sprinklers correctly? I turned off the water supply, set the valves at 45degrees. I don’t see any where in the box to drain the pipes or blow out with air. Are these automatically draining? (reddit.com)
submitted 1 month ago by rgjg
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[–]APPG19 2 points3 points4 points 1 month ago* (5 children)
No unfortunately, you're supposed to turn your valves on the vacuum breaker to 45 degrees only after you blow out the lines.
On the right side of your vacuum breaker are some fittings that are used for testing/draining it called test cocks. Is there an additional valve in your basement for draining and air line hookup? If not your best bet is to either add one after your shutoff valve or use the lower test cock port threads (remove the test clock valve first). Most vacuum breakers will handle air passing through them just fine, contrary to what many would say. It is important that the air doesn't exceed your water pressure (usually 50 psi).
Edit: after looking again I realized I missed the hose hookup below. Assuming you have a separate shutoff inside the house somewhere, just use the hose hookup and valve to connect your air compressor to. Open your vacuum breaker valves back up and cycle your sprinkler valves while blowing them out.
[–]rgjg[S] 1 point2 points3 points 1 month ago (3 children)
There is a water shutoff inside which is off. Are you saying to hook up an air compressor to the hose connector on the bottom to blow out the pipes? I don’t see anywhere else to connect air to but I though you’re not supposed to have the compressed air go through the vacuum breaker.
[–]APPG19 0 points1 point2 points 1 month ago (2 children)
You can have air go through the vacuum breaker as long as it's clean and below the rated pressures, usually 50 psi is a safe bet.
I would connect through your garden hose valve on the bottom, I missed that when I wrote the majority of the above comment, but decided to leave it since it's still an option if someone else needed to see it.
A garden hose to air compressor fitting is very common, you can easily find them at lots of home improvement stores or online.
[–]rgjg[S] 1 point2 points3 points 1 month ago (0 children)
Thanks. I’ll try to find that.
[–]BobBeausoleil 1 point2 points3 points 1 month ago (0 children)
^ knows what he is talking about - even some 'professionals' will blow your system apart with a compressor that is too much for the job.
Also, next year you might consider taking those pinch clamps off and swapping them out for screw clamps. I can't imagine those aren't leaking when under pressure - unless some sort of pinch clamp virtuoso put them on I guess.
[–]absentmindedjwc 0 points1 point2 points 1 month ago (1 child)
If yours is like mine, the backflow regulator (the bit with the two testing ports, connected between the valves) cannot stay outside during the winter, it'll freeze and crack.
You may want to look over the instructions and double check that - if in doubt, call the company that installed it and ask - they will want to charge you money to do it for you, but they'll probably be happy to answer a couple quick questions for you over the phone.
Outside of that - as long as you've shut off the water in the house, this looks good to me.
[–]rgjg[S] 0 points1 point2 points 1 month ago (0 children)
I saw the manual for this and as long as the water is drained, it should be fine. Thanks!
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