Step 1 - Turn off Power to Well Pressure Tank
Before doing any type of work to the well pressure tank, it is important to make sure that the power is turned off. This should be done at the breaker box. Once you turn the breaker off, test the tank to make sure there isn't any power. Also, leave a note attached to the breaker letting others know that you are working on that item.
Step 2 - Drain Water from Tank
Attach the garden hose to the drain at the bottom of the tank. It is usually located on the bottom edge of the tank. Simply attach the hose to the drain by screwing it onto the faucet-like outlet. With the hose on the drain and the other end leading into a bucket or out a door, open the valve. The water should begin to immediately drain from the tank.
Step 3 - Remove Air Regulator
Located at the top of your well pressure tank is the air regulator that shows how much pressure is in the tank. This can be removed with the use of a pair of adjustable pliers. Carefully remove it so that you do not damage it.
Step 4 - Remove Access Hatch
Located on the top of the pressure tank are a few screws that hold the access panel to the pressure tank. Loosen these screws and remove them. Lift the access hatch away from the tank and shine a flashlight into the tank.
Step 5 - Wipe Out Build Up
Anything with water is going to have some type of calcium build up within the internal workings of it. Wipe out the inside of the well pressure tank with a rag. If you can not remove some of the build-ups, use a piece of steel wool. Scrub the calcium deposits off the pressure tank and pipes.
Step 6 - Replace Access Hatch
Set the access hatchback onto the well pressure tank and tighten it down with the screws.
Step 7 - Replace Air Regulator
If the regulator looks like it is not working correctly, test it with an air pressure tester. If needed, replace it with a new one. Wrap some plumber's teflon tape around the threads and screw into the housing. Tighten it down with the pliers.
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