disc faucet has two discs to mix the hot & cold water
& control the amount of flow. The disc assembly
itself will rarely need replacing. Leaking usually means
that the inlet seals are worn & should be replaced.
Replacement kits are available at plumbing supply firms.
To get the right kit, write down the brand of faucet you
have, or take the disc along w/ you.
First, turn off the water supply & drain the water by
lifting the lever to its highest position.
Under the lever is a set screw that holds the lever to
the lever post. Use a screwdriver to turn the set screw
counterclockwise until you can lift off the
off or unscrew the cap that covers the cartridge. Loosen
the screws on top of the cartridge & lift it out of
At the bottom of the cartridge is the set of seals. Pull
out the worn seals & replace w/ new ones from the
kit. Remove any mineral sediment that has built up in
When reinserting the cartridge, align the holes w/ those
in the base of the faucet body. Reassemble the faucet
reversing the order it was taken apart.
you raise the handle of this faucet, the stem also
raises, controlling the flow of water. Rotating the
handle to the right or left controls the water
temperature. Leaks usually mean replacing the o-rings or
the entire cartridge. Take the old cartridge w/ you to a
plumbing supply store to ensure that you get the correct
turn off the water supply & lift the handle to drain
Carefully pry off the decorative handle cover or housing
& remove the handle screw.
Lift off the handle assembly. On some faucets you may see
a "keeper" or retainer clip at the base of the handle
assembly. w/ others, like a swivel-spout faucet, you must
first remove the handle & then the spout. If this is
the case, unscrew the retainer nut, then lift off the
Under the handle, you may find a tube or cylindrical
sleeve that slides off to expose the "keeper" or retainer
clip. This clip is what holds the cartridge in place. Use
long-nose pliers or a screwdriver to remove the clip from
Lift the cartridge out of the faucet body w/ pliers. If
the 0 rings are worn, install new ones.
If the cartridge is to be replaced, note the position of
the cartridge ears, or a flat spot, arrow, or marking on
the cartridge stem. When the cartridge is replaced, they
should be in exactly the same position as when
Replace the cartridge & the retainer clip. On
swivel-spout faucets, lubricate the 0 rings around the
outside of the body & then push the spout down over
the rings, into position.
Tighten the retaining nut w/ taped or cloth-covered
pliers & reinstall the handle.
single handle sits on a ball assembly. When the faucet is
raised, this ball rotates to control the flow of water.
Moving the handle to the left or right allows hot or cold
water into the mixing chamber. Leaks from the spout can
occur when the seals & springs give out.
at the handle may mean that the adjusting ring is loose
or that the seal above the ball is worn.
under the spout may require replacing the o-rings. While
the faucet is apart, check for a worn or corroded ball
& replace if necessary. Repair kits are available at
plumbing supply stores. You'll need the make & model
number or the old parts to get the correct replacement
turn off the water supply & lift straight up on the
handle to drain the water.
Loosen, but don't remove, the handle's set screw w/ an
allen wrench & remove the handle.
Loosen the adjusting ring. A special wrench for this
comes w/ most repair kits. Unscrew the cap, using cloth
or tape- covered adjustable pliers if needed.
Lift out the cam assembly & ball. If you have a
swivel-spout faucet, lift off the spout as well. You may
have to carefully pry the spout loose at the base or
exert some pressure to lift it off, since it is
friction-fitted around the body.
Remove worn seals & springs from the body w/
long-nose pliers or a pencil inserted into each seat.
Scrape away any mineral deposits & replace the new
springs & seals.
If yours is a swivel-spout faucet, pry away the o-rings
from the body, & roll the new ones down until they're
in the appropriate grooves. If the faucet has a spray
diverter, replace the diverter o-ring in the same
Reassemble the parts in reverse order from which they
were taken out. When you replace the ball, align the slot
in its side w/ the pin inside the faucet body. The key on
the cam assembly also fits into a matching notch on the
a swivel-spout faucet, push the spout straight down until
it clicks against a slip ring at the base of the body.
The tension from the o-rings may mean that you'll have to
the cap & tighten the adjusting ring to get a good
seal between the cam & the ball. If you notice a leak
around the handle after testing the faucet, tighten the
adjusting ring a bit more.