Water Pressure Tank Issue

[SIKSUKR]

I would still suspect the bladder in the tank if your pressure switch checks out. Monitor your pressure gauge on the tank with no usage and see if it drops. If it drops, try to eliminate each problem. If you have a valve on the suction(lake) side of the tank then shut it off and watch your gauge. If it dropped before you shut it and does not after then a faulty check or leaking supply pipe are the potential culprits.
Here's what I would do to to see if my bladder is toast. Have somebody flush a toilet while you watch your gauge. If it drops to the low start up and switches the pump on, you pretty much determined 2 things....Your switch works fine and your bladder is full of water.

[ITD]

Originally Posted by SIKSUKR

I would still suspect the bladder in the tank if your pressure switch checks out. Monitor your pressure gauge on the tank with no usage and see if it drops. If it drops, try to eliminate each problem. If you have a valve on the suction(lake) side of the tank then shut it off and watch your gauge. If it dropped before you shut it and does not after then a faulty check or leaking supply pipe are the potential culprits.
Here's what I would do to to see if my bladder is toast. Have somebody flush a toilet while you watch your gauge. If it drops to the low start up and switches the pump on, you pretty much determined 2 things....Your switch works fine and your bladder is full of water.

This.......