Bought a house 6 months ago. It has a well, the water pressure was never amazing but it was fine. Last week it started to get bad so I checked the well pressure. The switch was designed for 40/60 but it was cutting on/off about 35/50. So I drained the tank reset it to 40/60 and pre charged it to 38psi. The pressure seemed to be working great... sometimes and on some faucets.
The pressure on the 2nd floor shower is pretty good along with the faucets up there. But the 1st floor kitchen sink has poor pressure. Theres also a faucet on the first floor that has no cold water coming out of it all but a faucet in the room 3 feet away has fine pressure.
The above is the average condition, but when the tank is low, around 45psi, the water pressure everywhere drops, many go to zero and you can hear air in the pipes.
I did notice that the well tank, when at 60 psi, is only about 1/5 full of water. And I have seen the if I have a few larger faucets on, like a tub and 2 showers, the pressure goes down even when the well pump is on. I wonder if theres a problem with the pump and or my water level dropped but I can't f ind anything online with a similar problem. I've tried clearing air out of the pipes by running everything but when I do that the pressure drops to basically nothing.