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Plumbing: How To Resurface A Faucet Seat


seat resurfacing toolShower faucets and sink faucets that use separate handles for the hot and cold use a stem and a seat. The stem rotates as the handle is turned and a rubber washer on the bottom of the stem presses down against the seat to stop the flow of water. The flow of water is started when the stem lifts off of the seat to allow the flow of water. When a leak develops, it is usually the case that the washer at the bottom of the stem needs to be replaced, and the seat in the faucet body needs to be replaced.

After shutting off the water to the house, the stem can be removed and serviced by unscrewing it. The seat however can be a problem. You can remove it using a seat wrench but there are times when it seems the seat is welded in place.

Your other option is to resurface the seat. You can buy a resurfacing tool and place it into the valve body until it contacts the seat. By hand you can rotate the tool to smooth the surface of the seat. It will abrade the tiny pits on the surface so the stem washer and the seat will seal out any plumbing leaks.


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