To my understanding, this is the water pressure valve and it is located in my garage. About two weeks ago, the county did some flushing of the water mains in my area. We had a little staining of the water one time and it seems that this pressure valve has had a whistle since. Not every time so that makes it even more frustrating to say why. No noticeable pressure loss in the house.
My question is can I remove this valve and clean it? Would there be screens that could hold sediment? The water meter is outside in a box in the ground so any sediment would have to of gone through that first. It's just annoying to hear a whistle when water is used. Any help is appreciated.