I have a 5 year old well with a goulds sub. pump and a pressure tank that is buried in the ground. The well is 165 feet deep. My water pressure gradually drops to almost nothing at each faucet in the house until the pump comes on and then pressure is fine and the cycle repeats (the pump kicks on about every 10 to 12 minutes with water running). There are no leaks in the house plumbing. I cannot see what the pressure is at the tank, as it is buried. This has just recently started.
Any ideas before I start digging would be appreciated
Any ideas before I start digging would be appreciated