Today, replaced another Franklin PumpTec on our well. Due to sorry manufacturing standards, they barely last the warranty. As part of servicing, checked the air pressure in the bladder tanks. They should have been around 28 PSI , which is 2 PSI below cut in pressure on switch. One was around 20 PSI, and the other was almost ZERO. Found that one to have a bad Schrader valve ( leaks slowly,) which I replaced. If you have a well with a bladder tank, you should at least annually check the pressure in the bladder tank. To check pressure, drain water from tanks, then using a tire pressure gauge, check pressure. Adjust air pressure to be 2 PSI BELOW cut in pressure on switch. By doing this, you will lengthen the life of your pump.