Can I just cap a sprinkler?
Question:I just purchased a house. The house has auto sprinklers. Some of the sprinklers are ineffective and unnecessary. Can I just cap the sprinklers under the ground? I live in Utah where the ground often freezes during the winter. Will capping the sprinkler have an effect on draining the sprinklers and thus freezing problems during the winter?
Answers:
If you cap a head that is at the end of a run, the pipes can freeze and break. The system is winterized from the backflow or inside the house and the water is forced out of the heads with an air compressor. If the heads are somewhat ineffective, see if the nozzles are interchangeable and put in smaller nozzles. If it is a spray head, you can close it by tightening the screw in the center of the top of the head, and reopen it to winterize.
Lawn sprinklers are not usually drained through the heads, so I don't see a problem capping inoperable ones.
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