How to Adjust Water Well Pressure

backyard well faucet
What You'll Need
Channel locking pliers
This how-to guide
Pair of old clothes

Many households still utilize well water rather than tap into public water. In fact, a well is a great way to save money on public water. Some wells are installed with UV lights and treated with other bacteria-killing components to provide safe drinking water.

While well water can save you money, it does tend to have much lower pressure than city water supplies. The water pressure in a well is controlled by several factors. It is determined mainly by the well water pump that was originally installed. If you are having trouble with your faucet, follow these easy steps to adjust your well water pressure.

Step 1 - Turn Off the Electricity

Before you begin to alter the water pressure in the well, you need to turn the electricity off to the well pump. To do so, you need to locate the circuit breaker box and flip circuit breaker that connects to the well pump. If you have fuses, then you need to locate the fuse and remove it. Alternatively, if you cannot find the single component responsible for the well pump, then it is advisable to turn off the power completely.

Step 2 - Loosen the Pressure Switch

Using a pair of channel locking pliers, loosen the nut that holds the cover over the pressure switch. Looking at the pressure switch, you should see two springs and two nuts that are different in size. The bigger spring and nut should be 3/8-inches and the smaller spring and nut are 1/4-inches. The larger spring and nut regulates the “in” pressure while the smaller spring and nut the “out” pressure.

Step 3 - Turn the Large Nut

With your channel lock pliers, turn the large spring and nut. Make sure you turn clockwise to raise the “in” and “out” pressures. If you turn the spring and nut counter-clockwise, you will lower the pressure. Next, you need to adjust the smaller spring and nut. Turn it clockwise to increase the time the pump cycles. If you happen to turn the spring and nut counter-clockwise it will decrease the on and off times of the pump motor for your well. When you have completed these steps, put the protective cover back on the pressure switch.

Step 4 - Turn on the Power Supply

If you have turned off a circuit, then flip it back to the on position. If you have removed a fuse, then replace it with the new fuse. If you happen to turn the smaller spring and nut too far clockwise, it could cause a short cycle in the pump. A short cycle can cause the pump to burn out because it cycle too quickly.