How to Repair a Leaky Single Valve Shower Faucet

What You'll Need
Screwdriver (Phillips and flat)
Utility knife
Scouring pad/steel wool
Deep penetrating oil
Plumbers caulk

A single shower valve has drips that may cause staining on the wall of your bathroom. It is annoying to have a leaking single shower valve, as it also will cost you for the water being wasted. Even just a few drops in a given period of time can turn into gallons of water being wasted in a year. Using the appropriate tools, you will be able to repair a leaky single shower valve faucet with the help of the guidelines below.

Step 1 – Turn off Water Supply

In any repair that involves plumbing, like that of the single shower valve, you have to ensure that the primary water supply is turned off. Then cover the drain with a rubber plug. If it does not have a plug, use a bath towel. This is to prevent small parts or screws from being lost down the drain. When doing disassembly, put the first parts that you take out in the last line. This is because you will be observing first out last in method in reassembly later on. It will also advisable to lubricate all the mechanical parts in the tools that you will be using in doing your repairs.                   

Step 2 – Screw Removal

Unscrew the faucet handle at the underside and remove it. Usually a Phillips screwdriver is used for this task.

Step 3 – Taking the Escutcheon Away

Take away the screws that hold the escutcheon using your Phillips screw driver. This is the decorative part metal plate that is at the back of the faucet handle. Use the utility knife in cutting the caulk on the escutcheon so that it will be removed, then set it aside.

Step 4 – Remove the Valve Cartridge

The water supply valves are now visible inside the wall, shut it off. Using your wrench, dismount the valve cartridge, and remove any residue originating from the threads of the valve using a scouring pad or steel wool.

Step 5 – Replace O-Ring Seal or Gasket

Should the O-ring seal or gasket be damaged or worn out, have them replaced immediately. You should have the necessary possible replacement of these things before conducting any repairs on the single shower valve.

Step 6 – Ensure the Water Integrity on Valves

Put some application of the plumber’s caulk on the valve threads to ensure watertight and waterproof seal. Then secure the valve back into place using your wrench. You may then open the water supply valves. Apply some plumber’s caulk on the escutcheons’ back edges. Then screw the escutcheon back where it is placed.

Step 7 – Finishing Touches on Your Repairs

Mount the faucet handle back in its place and secure it with its screws. Turn your main water supply on and test the shower for a period of time. Shut it off and verify if leaks are still present. Repair on your single shower valve is now finished.