Fixing a Leaky Faucet
Two handled faucets that use washers and seats require regular maintenance to keep them from leaking through
the spigot. The washers dry out and seats become worn or covered with scale and should be replaced. One handled
faucets use a cartridge system that is another project. Before you start, turn the water to the house off. Please note that
the procedure detailed below is necessarily generic as there are many variations used by manufacturers.
Remove the handle from the stem (Fig. 1). There is normally a screw that holds the knob onto the stem. On some
knobs, the screw is concealed by a plate (normally with an "H" or a "C" on it). Use a thin screwdriver to pry up the plate
and remove the screw. Sometimes the handle seems stuck on and might require that you gently pry around it. If the faucet
in question is a tub faucet, it might also have a decorative collar. This is normally screwed on. If it is tight, cover it with a
rag and use a wrench on it (Fig. 2). Be gentle though.
Now that the stem and bonnet are exposed, use an adjustable wrench to remove the bonnet from the faucet (Fig. 3).
Place a rag into the faucet to keep the water from running out. Note: If the exposed stem is plastic, you may just have to buy
a new stem.
Look at the end of the stem. There is normally a neoprene (rubber) washer on the end of the stem. The washer is held
on by a screw. Take this screw out and take the washer off (Fig. 4). Be careful taking the washer out, it might be very
brittle and when you go to the store it helps to have the old one.
The "seat" is next (Fig. 5). The seat is the part of the faucet that the washer closes against to shut off the water. Look
into the faucet, normally the seat has a square or hexagonal hole in the middle. Insert the seat wrench (Fig. 6) into the hole
and remove the seat (Fig. 7). If you have to use a lot of pressure and feel the wrench starting to strip the hole then you
should stop and call a professional.
Take the washer and seat to the hardware store and get new ones. If the seat doesn't come with a washer, put some
dope on the threads and install the new seat. Put the new washer on the end of the stem and secure with a screw. Reinstall
the bonnet and stem into the faucet, turn on the water and check for leaks.
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