Pump Pressure Tank Settings

A pressure tank for a well is a necessity for any home that uses well water.

Pump pressure tank settings.

The three pressure switch settings for pressure tanks are 20 40 30 50 and 40 60. Furthermore always set the pressure switch to reflect a 20psi differential between cut on and cut off. If your flow rate is above 20 you may require multiple tanks. Work out what pressure your pump is turning off at high pressure and on at low pressure.

Selecting a poorly made pressure tank may result in more troubleshooting scenarios than necessary. For example if your well pump pressure control switch is set to cut in start pumping water from the well at 30 psi then set the pressure tank to 30 2 28 psi. How do i adjust my pressure tank. The pressure switch setting is the pressure at which the pump turns on to fill the tank up and the pressure at which the pump shuts off knowing the tank is full.

Check pressure in the tank with your pressure gauge. Locate the pressure switch limits which are located inside the pressure switch cover. So for example with a 30 50 pressure switch factory default setting air pressure in the tank will equal 28psi. Bleed air pressure out of the water tank or add air pressure into the water tank until the tank pressure is at the desired set pressure.

Your well tank s pressure should be set at 2 psi below the pressure switch s cut on point. The cut on pressure for the well pump is 30 psi so the pressure of the tank should have a pressure of 28 psi. Most well tanks come set at 30 50. What pressure should my well tank be set at.

From there the water passes into the pressure tank which is a second holding tank connected to a jet pump that keeps the water pressurized. For example if you have a pressure switch setting of 30 50 psi you pressure measured at the top of the tank should read 28 psi. The tank pressure must be lower than the switch pressure. When the pressure in the system rises to the preset high setting the pump will turn off commonly known as the cut off pressure.

This differs depending on your tank s pressure settings. In a typical setup a shallow or deep well pump transfers groundwater to a holding tank. For example at 40 60 the pump will turn on when system pressure reaches 40 psi pounds per square inch and turn off when system pressure reaches 60 psi. If the pressure switch is adjusted to 40 60 the cut on pressure will be 38psi.

Release or add air as necessary to make the pressure 2 psi below the pressure switch pump cut in setting. Because the pressure tank is a core component of the entire well system responsible for regulating pressure and for easing the workload of the well pump the importance of selecting a the right well pressure tank cannot be overemphasized. If the pump cycles too quickly causing the. Setting the pressure in a water pressure tank is very important before installing the tank.

Most pressure tanks come already pre set this is usually to between 15 25 psi 100kpa 175kpa when you have installed the tank you can then adjust the air pressure using a tyre gauge and a compressor or bike pump.