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Reassemble and Test the Faucet — Install New Hardware and Test for Leaks

Beginner4 hours

Part of project

Shower Faucet Replacement: A Complete DIY Guide · Step 4 of 4

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In this video

Reattach the cover plate with its screws, then slide the handle back on and tighten the set screw. Slowly turn the main water supply back on. Turn the faucet handle to test for both hot and cold water, check that the temperature mixes correctly, and inspect carefully for any leaks around the handle or cover plate.

Goal: Reassemble and test

  • Turn the water back on slowly. If you see any leaks, shut the water off immediately and check your connections.

Used in this video

  • Screwdriver — Re-installing the cover plate screws.
  • Allen wrench/hex key — Tightening the set screw on the faucet handle.
2.3K views95-10 minutes
steven lavimoniere

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FAQs

What additional tools or materials might I need that aren't listed as 'required'?

Beyond the basic adjustable wrench and multi-screwdriver, you might need penetrating oil for stubborn screws, a putty knife for escutcheon removal, or soldering equipment if your new valve requires soldered connections. Always check your specific faucet's manufacturer instructions for precise requirements.

How important is it to take photos of the old hardware before removal?

Taking photos is crucial, especially for beginners. It provides a visual guide for how various parts fit together, which is incredibly helpful during the reassembly of the new hardware and ensures you don't miss any small components or their correct orientation.

What should I do if I can't completely shut off the water to my shower?

If you can't locate or shut off the individual hot and cold supply lines for the shower, you'll need to turn off the main water supply to your entire house. If access is difficult or the main shut-off is problematic, it's best to contact a professional plumber before proceeding to avoid water damage.

My new shower valve requires soldering, but I've never done it before. What should I do?

Soldering copper pipes requires specific tools, training, and technique; improper soldering can lead to significant leaks. If your valve requires this method and you're uncomfortable, consider hiring a plumber for this specific step or look for a new valve that uses compression or PEX connections instead.

Transcript
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Okay, I'm dealing with an old Delta shower single knob shower head. I already removed the knob and the cover plate but what happens with these things is this thing, it comes out of here, it just screws in. I took the old one out. You can see you just unscrew it and pull it out but it's a little, I got this on the Amazon. It's a pressure balance spool for tub and shower and I think it works on a lot of different faucet heads but what happens is you lose your hot water or your cold water and you can't adjust it so you need to get a new one of these. This is the third one I put in this one because if you let it sit for, I let it sit for six months or so and every time I do that it doesn't work anymore so it can probably get something new but that's not what I'm gonna do. I just thought this video would help because I couldn't find one to help me fix it. So, thanks.

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