How To Install A Delta Shower Faucet

Installing a Delta shower faucet can seem daunting, but with the right preparation and a step-by-step approach, it's a manageable DIY project. This guide will walk you through the process, empowering you to tackle this plumbing task yourself, saving money and gaining valuable home improvement skills.

Preparation is Key

Before you begin, gather all necessary tools and materials. This includes:

New Delta shower faucet set (valve trim, showerhead, and potentially a tub spout if applicable).
Screwdrivers (Phillips and flathead).
Adjustable wrench.
Pipe wrench.
Channel-lock pliers.
Plumber's tape (Teflon tape).
Pencil.
Measuring tape.
Drop cloth or old towels to protect the tub/shower surface.
Basin wrench (for removing the old tub spout, if applicable).
Penetrating oil (e.g., WD-40) for loosening stubborn connections.
Safety glasses.
Gloves.
Clean rags.

Most importantly, turn off the water supply to the shower. This is usually done at the main water shut-off valve for your house or at dedicated shut-off valves for the bathroom. Test the water is off by turning on the old shower faucet.

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Carefully remove the existing shower faucet trim. This usually involves unscrewing screws that hold the handle and escutcheon (the decorative plate behind the handle) in place. Note the order in which parts are removed – this can be helpful during reassembly. Once the screws are removed, gently pull the handle and escutcheon away from the wall.

Examine the existing valve body behind the trim. Determine if you need to replace the entire valve body. If you are only replacing the trim and the existing valve body is compatible with the new Delta trim (check the Delta compatibility charts online), you can skip the steps involving valve body replacement. However, if your old valve is leaking, corroded, or incompatible, you'll need to replace it. Replacing the valve body is a more complex project and may require soldering. If you're not comfortable with soldering, consider hiring a licensed plumber.

Replacing the Shower Valve Body (If Necessary)

This section assumes you have determined that you need to replace the existing shower valve body.

Accessing the Valve Body

Access the valve body from behind the shower wall. This may involve cutting an access panel in the wall from an adjacent room or closet. Carefully cut an opening large enough to comfortably work on the valve body connections. Protect the surrounding area with drop cloths.

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Disconnecting the Old Valve Body

Using pipe wrenches, carefully disconnect the hot and cold water supply pipes from the valve body. Apply penetrating oil to the connections if they are difficult to loosen. Have a bucket and rags handy to catch any remaining water in the pipes. Disconnect the showerhead pipe and the tub spout pipe (if applicable) from the valve body.

Installing the New Valve Body

Clean the threads of the supply pipes thoroughly. Apply plumber's tape clockwise around the threads of each pipe connection. Wrap the tape several times to ensure a good seal.

Carefully connect the new valve body to the hot and cold water supply pipes, the showerhead pipe, and the tub spout pipe (if applicable). Tighten the connections securely with pipe wrenches, but avoid over-tightening, which can damage the pipes or the valve body. Ensure the valve body is properly oriented, following the manufacturer's instructions.

Once all connections are made, turn the water supply on slowly and check for leaks at each connection. If you find any leaks, tighten the connections slightly. If the leaks persist, turn off the water supply and re-apply plumber's tape, ensuring a good seal.

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Soldering Connections (If Applicable)

If your new valve body requires soldering, ensure you have the necessary skills and equipment. Clean the copper pipes and fittings thoroughly with a wire brush. Apply flux to the joints. Heat the joints with a propane torch until the solder melts and flows into the joints. Allow the joints to cool completely before turning on the water supply.

Installing the New Shower Faucet Trim

Whether you replaced the valve body or not, the next step is to install the new shower faucet trim.

Follow the manufacturer's instructions for installing the specific Delta trim kit you purchased. Generally, this involves:

Installing the mounting bracket for the handle. This usually attaches directly to the valve stem.
Attaching the escutcheon plate to the wall, covering the valve body.
Installing the handle onto the mounting bracket. This usually involves tightening a set screw.

Ensure all parts are securely attached and properly aligned. Test the handle to ensure it moves smoothly and controls the water flow correctly.

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Installing the Showerhead and Tub Spout

Remove the old showerhead by unscrewing it from the shower arm. Clean the threads of the shower arm and apply plumber's tape. Screw the new showerhead onto the shower arm and tighten it by hand. Use an adjustable wrench to tighten it slightly more, but avoid over-tightening.

If you are replacing the tub spout, remove the old spout. This may involve unscrewing it from the pipe or loosening a set screw. Clean the threads of the pipe and apply plumber's tape. Screw the new tub spout onto the pipe and tighten it securely. If the tub spout has a diverter, ensure it is functioning correctly.

Final Checks and Cleanup

Turn the water supply on completely and check for any leaks around the shower faucet trim, showerhead, and tub spout. If you find any leaks, tighten the connections as needed. Run the shower to ensure the hot and cold water are functioning correctly and that the water temperature is comfortable.

Repair the access panel in the wall behind the shower. Patch any holes or cracks and repaint the wall to match the surrounding area. Clean up any debris and tools.

By successfully completing this project, you've not only saved money on plumbing costs but also gained valuable home improvement skills that can be applied to future projects. Knowing how to install a shower faucet empowers you to maintain and improve your home efficiently.

Regularly inspect your shower faucet for leaks or damage. Addressing issues promptly can prevent more significant problems down the line.