We found on the internet a test to see if your pressure tank on your sprinkler pump system is faulty. It said to disconnect the pump and run all the water out of the system, then wiggle the pressure tank to see if there is any sloshing. We did this and there was none. So we decided to start the pump again and get water in the system and wiggle the pressure tank again, still no sloshing. Our pump is cycling non-stop, with the pressure constantly jumping between 50psi and 35psi. With no slow decline from the max to the min as would be expected, as if the pressure tank is holding no water. Needless to say our pump is overheating and shutting down. We are unsure of how to take our pressure tank off to replace it. It is a 2 gallon Well-Trol pressure tank. We desperatly need some help, anyone out there who could walk us through it, it would be greatly appreciated. Thanks in advance.