An expansion tank protects your home’s plumbing system from potential injury attributable to the elevated water pressure created by your water heater. The increasing water could possibly backflow into the cold water supply without an enlargement tank. The tank is designed to catch the increasing water before it reaches your lines. An growth tank that leaks from around the fitting the place it attaches to the water line will be repaired. If the leak continues, though, you must replace the tank to cease it.
Things You’ll Need
Adjustable pipe wrench
Thread seal tape
Water-pressure test gauge
Bicycle pump or air compressor
Pre-charged growth tank
Flip the valve in your water heater’s water-provide line clockwise to shut the water supply off to the tank.
Turn off the breaker in the main panel to shut down an electric water heater.
Turn off the fuel to a fuel water heater by turning the fuel control valve to the off place on the water heater.
Replace Thread Seal Tape
Remove the existing expansion tank utilizing an adjustable pipe wrench and turning the tank counterclockwise at the top the place it attaches to the pipe fitting. Have a accomplice help the tank to maintain it from falling to the flooring.
Clean the threads on the growth tank. Take away any dirt, grim or outdated thread seal tape from the threads with an old cloth.
Wrap the threads in two or three layers of new thread seal tape. Reattach the tank to the fitting and tighten it with the pipe wrench
Flip the water provide back on to the water heater. Turn on the water or gas, and mild the pilot on the fuel water heater.
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Watch for added leaks from the tank. In case your enlargement tank continues to leak, it’s essential to change the tank.
Substitute the Enlargement Tank
Flip off all the water faucets inside your residence. Attach a water-pressure check gauge to an out of doors faucet. Turn on the outside faucet to get the strain studying. Observe the pressure reading on the gauge.
Attach a bicycle pump or air compressor to the altering valve at the underside of a alternative expansion tank should you want to increase the pressure in the tank above 40 pounds-per-square-inch.
Examine the pressure within the tank with a with a tire-strain gauge. Add or release air from the enlargement tank until the pressure within the tank equals the water pressure in your home.
Flip off the water provide to the water heater. Turn off the water gas or electric water heater. Remove the present growth tank with the adjustable pipe wrench.
Wrap the threads of the replacement tank with about three layers of thread seal tape. Screw the tank into the fitting and tighten it with the wrench.
Turn on the water supply and the gas or electricity to the water heater.
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