Expansion Tank Pressure Switch

It informs the well pump when to turn on and when to turn off based on the rise and fall of the pressure within the tank.

Expansion tank pressure switch.

Most expansion tanks come pressurized to 12 40 psi but before you install the tank you have to match the system pressure. Start by removing the protective cover from the air valve on the tank. If you do have another check valve then you would need an additional expansion tank also. Use a bicycle pump or compressor to fill the tank to match the system pressure you noted earlier.

A pre charged bladder tank is an expansion tank which is already charged with air. Turn on the water pump and let the system run until the water pump cuts off. Most households are set up to run with a pressure switch that turns the pump on at 30 pounds of pressure and turn the pump off at 50 pounds of pressure. That second valve would make it a closed system and keep your well tank from absorbing that pressure.

Here is the procedure. Open one or more plumbing fixtures to drain the water pressure tank. During this draining watch and listen to the water. Use a tire gauge to check the pressure.

Future bk king ultra. Use a bicycle pump or compressor to fill the tank to match the system pressure you noted earlier. The pressure switch monitors the pressure in the tank. Use a tire gauge to check the pressure.

Code requires an expansion tank only if the system is closed this absorbs excess pressure as the water heats. A bladder expansion tank is a system which is used for heating and cooling purposes by absorbing the expansion force. Most expansion tanks come pressurized to 12 40 psi but before you install the tank you have to match the system pressure.