Not mine, but here is a problem I've never seen. 1970's home with a submersible pump, 1" galvanized under the house to the galvanized pressure tank in the garage. The pump seems to cut-in/out fine and is not short cycling, however the tank is real noisy. It's difficult to describe, but sounds like a loud rattling racket. The noise diminishes as the pressure increases and stops when the pump shuts off. I'm wondering if it's a haywire ball check valve or? Anyone ever run into something like this?
