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Preparation — Turn Off the Water Supply: A Crucial First Step

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Shower Head & Handle Replacement: A Step-by-Step DIY Guide · Step 1 of 4

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Before starting, prepare for the project by understanding its complexity. This is an advanced task that may require professional help. Ensure the main water supply to the home is completely shut off. To relieve any remaining water pressure in the lines, turn the shower handle to the open position and let any residual water drain out.

Goal: Prepare for valve removal

  • Shut off the main water supply before beginning any plumbing project.
  • If you don't know where your main water shutoff is, contact your local water company for assistance.
  • Open the valve to relieve water pressure after shutting off the main supply.
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Lowe's Home Improvement

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FAQs

What should I do if I can't find or access the main water shut-off valve for my home?

If you can't locate your main shut-off valve, look for individual shut-off valves for your bathroom or shower, often under the sink or behind an access panel. If those aren't present or accessible, you may need to contact a plumber to identify and mark the main valve, or temporarily shut off water to your entire property from the street if you have access and permission. Do not proceed with the project until the water supply is confirmed off to prevent significant leaks.

The project mentions a screwdriver, but what if my old handle has a set screw that requires an Allen wrench?

Many modern shower handles use a small set screw, often hidden underneath the handle, behind a decorative cap, or on the side, which typically requires an Allen wrench. Carefully inspect your handle for a small opening or a cap that can be popped off. A multi-size Allen wrench set is an inexpensive and valuable investment for various DIY projects.

What if my old shower head or handle is corroded or stuck and won't budge with normal tools?

For a stuck shower head, try applying a penetrating oil like WD-40 to the threads and letting it sit for 15-30 minutes before trying again with an adjustable wrench. For a stuck handle, ensure any set screws are fully loosened. If corrosion is severe, using a pipe wrench with gentle, increasing pressure (for metal parts) or carefully applying heat with a hairdryer to expand metal connections might help, but avoid excessive heat on plastic components.

My new shower head is leaking right after installation, even with plumber's tape. What could be the issue?

The most common reason for leaks is insufficient or improperly applied plumber's tape. Ensure you wrap the tape clockwise around the shower arm threads (the direction it tightens) 3-5 times, making sure it covers all threads without gaps. Also, confirm the connection is hand-tightened, then given a final quarter to half turn with a wrench, but be careful not to overtighten and crack plastic components.

Transcript
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The first step is preparation. Make sure you understand the scope of this project before you begin. Moin recommends watching this video first. It explains how to remove an old tub shower valve. Then, watch our installation video, which overviews how to install a new Moin one-handled Positet valve. This is an advanced project, so you may need help from a professional plumber. Allow plenty of time for this job. It will take at least an hour to remove the old valve. Two people are recommended for removal. Before starting any plumbing project, shut off your home's main water supply. If you don't know where it's located, contact your local water company for assistance. Also, open the valve by turning on your tub shower to relieve the water pressure. If you have questions at any time, please call Moin Consumer Services.

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