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Turn Off the Water Supply — Shut Off Water Supply & Drain Lines

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Shower & Tub Faucet Replacement: A Complete DIY Guide · Step 1 of 5

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Before beginning the repair, you must shut off the water to the shower. Locate the shut-off valves, which are often under a nearby sink or in the basement, and turn them clockwise to close them. If you cannot find local shut-off valves, you will need to turn off the main water supply to the entire house. Once the water is off, turn on the shower faucet to release any remaining pressure and drain the water left in the pipes.

Goal: Turn Off Water Supply

  • Turning on the faucet after shutting off the water confirms the water is off and relieves pressure, preventing splashes during disassembly.
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FAQs

What's the absolute first thing I need to do before starting this project to avoid a plumbing disaster?

The most crucial first step is to shut off the main water supply to your house, or at least the supply to your bathroom. After that, open the existing faucets to drain any remaining water from the lines, preventing unexpected spills and making the work area safer.

The guide lists an adjustable wrench. Is this tool essential, and are there any alternatives if I don't have one?

Yes, an adjustable wrench (like the Crescent 12 in. Chrome Adjustable Wrench AC212VS) is essential for securely tightening and loosening plumbing connections without stripping nuts. While a pipe wrench can be used, an adjustable wrench offers more control. Always ensure the wrench size matches your fittings to prevent damage.

As a beginner, how long should I expect this shower and tub faucet replacement project to take?

For a beginner, expect this project to take anywhere from 3 to 6 hours. This timeframe accounts for preparation, careful removal of old components, precise installation of new parts, and thorough leak testing. Rushing can lead to mistakes, so take your time and follow each step carefully.

What's the most common mistake beginners make during faucet replacement, especially regarding leaks, and how can I prevent it?

The most common mistake is not adequately sealing threaded connections, which invariably leads to leaks. Always apply plumber's tape (PTFE tape) clockwise to all male threaded pipe connections before tightening. Ensure connections are snug but avoid overtightening, which can damage plastic or brass fittings.

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An adjustable wrench, needle nose pliers, plumber's grease, a towel, or rack, a bucket. Before we do anything, we need to turn off the water supply to the shower. Look for the shut-off valves that are usually under the sink or in the basement, turn them clockwise to shut off the water. If you can't find the valves, you may need to turn off the main water supply to your house. Once the water is off, go ahead and turn on the shower to release any pressure and drain the remaining water. This will prevent any surprises when we remove the cartridge.

Auto-generated transcript. May contain errors.