![]() ![]() Buy a Moen replacement cartridge on Amazon and have it on hand.ġ Pry off the plastic cover at the top of the control valve, and then remove the screw at the center of the knob, using a Phillips screwdriver. Also cover the drain to prevent accidentally dropping small parts down it. Shut off the water supply to the shower and protect the surface of the tub or shower floor. Here is a really helpful video that shows this process.īefore beginning a shower valve replacement, read the information titled “Advice for Fixing Leaky Shower Faucets” above. If you don’t discover any leaks, caulk around the perimeter of the trim and then replace the escutcheon trim and the handle. When it’s tight, turn the water supply back on and check for leaks. Use the metal ring and four screws to secure it. Position it so the orientation is properly aligned. Then replace the old plastic cartridge with a new one, and replace the threaded piece and the flange.ĥ Be sure the rubber gasket will seal properly. Be sure the rubber O-rings come out with the cartridge.Ĥ Use a rag and, if necessary, steel wool to clean the inner surfaces of the valve. ![]() Reach in and pull the plastic cartridge out of the valve. Again, turn them counterclockwise to remove them. Remove the plate from the wall.ģ To remove the cartridge, unscrew the four screws that hold the dogged-eared mounting flange. If the escutcheon trim is caulked to the wall, use a sharp knife to cut the seal. Then remove the handle assembly.Ģ Next, unscrew the threaded sleeve, turning it counterclockwise, and remove it from the escutcheon trim plate. Use a Phillips screwdriver to remove the screw, turning it counterclockwise. For more about this, see How to Shut Off the Water Supply.ġ Pry the decorative button off of the end of the shower stem to expose the screw that secures the handle assembly. If you can’t find the shower shut-off valves, turn off the water supply to the entire house. In some houses, a shut-off valve is located in the bathroom, near the shower, or in the basement. ![]() Before opening up a shower valve, turn off the water supply. When working on shower faucets, place rags in the tub or shower floor beneath the faucets and over the drain to protect the surfaces and prevent small parts from being dropped down the drain. ![]() Be sure the faucet handle is turned all of the way off, but don’t over-tighten it! This may damage the valve. Unfortunately, this may only make things worse. If you turn off a shower faucet and the water keeps dribbling out of the shower head, a natural instinct is to crank the handle closed as hard as you can. When they do, water squirts or drips out. And the rubber O-rings and gaskets that seal connections between moving metal parts wear down with time and use. In most cases, inner seals are worn, or parts have become corroded or clogged with hard water deposits. When water drips or drizzles from a shower head, there is a problem with the shower faucet (valve). What Causes a Leaky Shower Faucet or Shower Head Drip? Over time, water dribbling into the wall can cause dry rot, mold, and structural problems that can be both hazardous and very expensive to repair. Even more concerning is the shower valve that leaks inside the wall. ![]()
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