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Question DetailsAsked on 11/2/2016

How do I turn off my pressurized irrigation for the year (Oct 15 was the cutoff)?

My house was built in 1950 and the irrigation was hooked up to my sprinkler system within the 1st yr of living here (2010- 11. But the people that did the job, did a horrible job and the pipe burst that is right in the green box by the street, the first year. So I haven't had sprinklers for about the last 4 years now. And idk if the water is getting turned off and on correctly.

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2 Answers


To turn it "off" you turn off the control to that branches control valve. Commonly, the control box will also have a main shutoff valve on the incoming line that you shut off, and a drain valve in the box to drain out the controller. Then unless the system is ALL on enough slope to free drain by itself (very rare - and not at all with buried lines and in-0ground or pop-up heads), the lines have to be blown out with high-volume (more than household shop compressor capacity) compressed air each fall to clear water out of the lines so they don't freeze and crack. Some people open the drain valve or disconnect the fitting connecting the controller to the main water line and cross their fingers and hope it will not crack the lines or controller, but if the ground freezes hard at the surface that is hopeful wishing - especially with plastic pipe.

Irrigation specialty companies do this, as do many Landscaping companies. Also a few plumbers get into irrigation/sprinkler system repairs and winterizing.

I hate to say it, but if you have ground freezing conditions, then control box should not have been at the street - it should have been in the house, with all the sprinkler/irrigation lines leading into the controller INSIDE the house. And the outside lines should be blown out each year. Usually takes about a 250-400 cfm 150 psi compressor or larger to do the job right - one line at a time. Common charge $75-150 to winterize a single sprinkler/irrigation system (one controller location) depending on number of branches to the system.

If calling a company out to winterize it,, you might have them look at the broken sprinkler system and fix it too - though might be too late to test it this year. Also, have them brief you on turning it on and off - while you probably won't be able to winterize it yourself, no reason they can't show you what valves to open and close and what power switch to turn on to get it up and running next spring after the risk of heavy frost is past.

Answered 3 years ago by LCD



This is James in Member Care. Thanks for your interest in Angie's List!

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Answered 3 years ago by Member Services

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