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Remove Old Valve — Remove Old Faucet Valves

Beginner

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Shower & Tub Faucet Replacement: A Complete DIY Guide · Step 3 of 5

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In this video

With access to the valve, identify the four connected pipes: the hot water inlet, the cold water inlet, the outlet pipe going up to the shower head (shower riser), and the outlet pipe going down to the tub spout (tub drop). Using a tubing cutter, carefully cut each of the four copper pipes. It's recommended to cut the tub drop pipe first. Continue cutting the remaining pipes. Before making the final cut, securely hold the valve body to prevent it from falling and potentially damaging other pipes. Once all four pipes are cut, the old valve can be removed.

Goal: Cut the pipes and remove the old valve body

  • Hold on to the valve when making the last cut so it doesn't drop.
  • For copper pipes, cut midway between the valve and any elbow fittings to leave enough pipe for the new installation.

Used in this video

  • Tubing Cutter (Tool Type: Plumbing Tools, Power Source: Manual)Cutting copper pipes to remove the valve.
  • Safety Glasses (Safety Features: Eye protection)Protecting eyes from debris while cutting.
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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.

Transcript
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We recommend 14 inches by 14 inches, centered on the wall behind your valve. Step 5. Remove your old valve. Tube shower valves are plumbed with one of four tubes or pipes. Copper, IPS or galvanized steel, PEX, or CPVC. In this demonstration, we'll show you how to remove a valve attached to copper plumbing. Notice the four tubes connected to the valve. There are two outlets, the shower riser and tub drop, and there are two inlets, hot water and cold water. The valve controls water coming in through the inlets and going out through the outlets. To remove your old valve, simply cut each tube with a tubing cutter. Start at the tub drop outlet. Cut the pipe halfway between the valve and the elbow. Follow the same steps to cut the remaining three tubes. Before making your last cut, hold onto the valve so it doesn't drop. Now you're ready to install your new valve.

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