I have not disassembled a sprinkler head but I have heard some mention a filter that can get clogged with sediment. If your heads have one of those, it should be an easy thing to clean.
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Why do people insist on making claims without looking them up first, do they really think no one will check? Proof by emphatic assertion rarely works.
Confirmation bias is real; I can find any number of articles that say so.
Victor, NY
Randallstown, MD
Yakima, WA
Stevensville, MD
Village of Hillsborough
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