Well Pressure Switch Adjustment Water Well Problems

If you have a water well to supply your water needs, then you also have a well pump is some form and a well pressure switch that controls the water well pump and the pressures that it turns on and off at. Making the adjustments to this switch can be confusing, I will try to take away some of the confusion for you. There are many types of well pressure switches made. I will describe the adjustment of the most common type of switch and you can possibly translate from there if you have a different type of well pump pressure switch.

1. Turn off the power to the well pump before making any adjustments. The blue flash from the arc when you short out the power is scary and leaves you seeing stars for a time.
2. Drain all of the water pressure from the system and check that you have air pressure in your well pump pressure tank. If you intend to set the cut in of the pump at 30 PSI then make sure there is 28 PSI in the air part of the tank. Always 2 PSI less than your cut in pressure.
3. Start the pump, run water, and then observe the pressures as the pump starts and stops. Remove power when adjusting to avoid the blue flash…you are working in close proximity to the electrical contacts of the switch.
4. To raise the cut in pressure turn the taller center nut down to increase the spring pressure. This will start the pump at a higher pressure. To lower the start pressure turn the nut up or counter clockwise.
5. To change the differential pressure, the difference between the start and stop pressures, you need to adjust the smaller nut that is on the side of the pressure switch. Turning this nut down will increase the differential pressure and likewise turning this nut counter clockwise or up will lower the differential pressure.

This process can take some time, but it will be worth it to have your pump and water system operating efficiently. You also can set the well water pressures to your liking.
This is a basic guide to help you fine tune your water well pump and your well pump pressure tank, along with your water pump pressure switch, so that they all work together to give you a good stable supply of well water.
http://www.fixya.com/support/r3689163-water_problems_pump_problems

http://www.fixya.com/support/r3690698-pump_problems_water_tank

http://www.fixya.com/support/r3690937-pump_problems_pressure_switch

http://www.fixya.com/support/r3695577-jet_pump_jet_water_pump

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