About a week ago, we started hearing a very loud, high-pitched squealing noise in our water pipes whenever someone turns on the water in the upstairs bathrooms. I haven't discovered where it's originating from yet but the squealing definitely can be heard clearly downstairs.
It's an excruciatingly annoying high-pitched squealing. Like someone letting air out a balloon very very slowly. I'm trying to diy the problem but am not sure where to begin. We capped off one of the sprinklers and am wondering if somehow dirt or something got lodged in there but would that cause this high pitched squeal?
If I ignore it, will it damage the pipes (nevermind my sanity)?