Did the water dept recently do any water line repairs or upgrades?
I knew I had a leak once in the bathroom when the sink taps starting singing.
It's in the cold water line. Other symptoms I'm noticing include water hammer when the washer stops drawing cold water, and more pronounced sputtering on the second floor fixtures after the laundry has run (washer is in the basement).
Laundry equipment is brand spanking new, and the upstairs sputtering happened with the old washer too.
Water hammer is a sure sign the dampers are failing. If they leak air(it's how they work) they will fill with water and no longer cushion the sudden shut off of a washer solenoid valve.
This is all theory as I am not a plumber. Just a hack carpenter who has flipped a few houses. Old plumbing is a bane.
Air bubbles do work their way up, as they are lighter than water. They easily get trapped in bends and can be tricky to get rid of.
I once read, never tried, that low pressure allows them in. Unhooking your washer and hooking a short hose from the hot to the cold and turning both on, then turning on water at the furthest spicket from the washer might force the 'bubble' out.
Thanks, Doc. I just loosen the supply hose to an upstairs vanity faucet until all the air is forced out. Works every time.
Why don't you just open the faucet fully and let the air out?
Buy a new house............
Thanks for the input, Franc. What's a damper?
150psi! That would get your attention in the shower! I have the identical valve. There's a screen with a spring and check ball in there I guess your supposed to clean once and a while. Mine was really crapped up with sand and rust. You must have a high pressure well pump!