How to adjust the pressure switch on a Goulds pump.
Pressure switches tell the pump when to turn on and off.The switch lets more water flow into the system when the pressure drops to 30 PSI.The switch is turned off at 50 PSI.
How do I know if my pressure switch is working?The pump doesn't turn off if the water pressure is at or above the cut-out pressure, which is one of the telltale signs that the pressure switch is failing.The pump doesn't work at the right pressure.Even though the pump is running, you have low water pressure.
The wrench's jaws should be over the nut of the adjustment screw.The screw should be turned clockwise to increase the water pressure and counterclockwise to decrease it.The adjustment should be made one or two revolutions at a time.To test the pressure, open a water faucet.
If the bladder tank appears to be malfunctioning, you can drain it by opening the closest faucet.Attach an air pressure gauge to the air charging valve on the top of the tank to check the pressure.If the pressure is more than 2 psi below the pump cut-in pressure, add air.