If your radiator is leaking water, it's important to replace the valve to avoid damaging the structure of your home with the leaking water. Leaks also overwork your furnace and increase your energy costs. Replacing a leaky radiator valve is easy for a do-it-yourself homeowner to do, as long as you take it one step at a time.
- Skill level:
Things you need
- Pipe wrench
- Drain hose
- Pipe wrench
- Steel wool
- Tefflon plumber's tape
Shut off the supply valve, located near the back of the radiator at floor level.
Attach a hose to the drain valve, located on the opposite side of the radiator near the floor. Use a hose clamp around the end of the hose and tighten the screw of the hose clamp. Put the other end of the hose into a bucket to catch the water.
Use the pipe wrench to loosen the drain valve and allow the water to drain out. Remove the hose and close the drain valve.
Remove the valve set you are replacing from the radiator with the pipe wrench. Remove the other end of the valve from the feeder or drain pipe. Clean the threads inside of both valve seats with steel wool.
Wrap Teflon plumber's tape around the threads of the new valve.
Screw the new valve into the valve seat and the feeder pipe before tightening with the pipe wrench.
Open the feeder valve to refill the radiator with water. If necessary, open the water supply valve on your boiler to refill the system completely, following the manufacturer's instructions.
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