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Install Trim and Fixtures — Install New Components

Beginner4 hours

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Tub Faucet & Shower Valve Replacement: A Complete DIY Guide · Step 5 of 6

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In this video

Begin the final assembly by inserting the valve cartridge into the new valve body. On the shower side, install the shower arm elbow. Secure the mounts for the sliding shower bar, using a level for correct placement and an Allen key to tighten. Apply silicone sealant around the mounts for waterproofing. Attach the shower hose and head. Finally, install the main valve's escutcheon plate and handle, securing them with the provided screws and an Allen key.

Goal: Plumbing Fixture Installation

  • Do not overtighten the escutcheon screws, as this can crack the tile or the plate itself.
  • Turn the water back on slowly and check for any leaks at the valve and all connections before patching the access hole in the drywall.

Used in this video

  • Allen Key Set (brand: Not specified, Tool Type: Hand Tools) — Tightening set screws on the shower bar mount and handle.
  • Level (brand: Milwaukee, Tool Type: Measuring Tools, Level Type: Torpedo level) — Ensuring the sliding shower bar is installed perfectly vertical.
  • Screwdriver (brand: Not specified, Tool Type: Hand Tools) — Fastening the escutcheon plate to the wall.
  • Caulk Gun (brand: Not specified, Tool Type: Hand Tools) — Applying silicone sealant.
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FAQs

What should I do if I can't find or turn off the main water supply to my house or apartment?

Locating and shutting off the main water supply is the most critical first step. If you can't find it, check your water heater for a shut-off valve, or contact your building manager or a professional plumber. Do not proceed with the project until the water supply is completely off to avoid significant water damage.

Besides the screwdriver and adjustable wrench, are there any other essential supplies or tools I might need for this tub faucet replacement?

Yes, it's highly recommended to have plumber's tape (Teflon tape) for sealing threads, penetrating oil for loosening stuck or corroded old parts, and a small wire brush for cleaning debris. You might also find a basin wrench helpful for reaching nuts in tight spaces behind the tub wall.

I've replaced everything and turned the water back on, but the faucet is still leaking. What should I check first?

First, re-check that the new valve stems are fully seated and securely tightened, but not overtightened. Ensure all O-rings are correctly positioned and intact, as a misplaced or damaged O-ring is a common cause of leaks. Also, verify that the connections to the water supply lines are tight and sealed with plumber's tape.

Is 4 hours a realistic estimate for a complete beginner, or should I budget more time, especially if I encounter stuck parts?

While 4 hours is a good estimate for someone with some DIY experience and no major issues, a complete beginner should budget more, perhaps 6-8 hours. Encountering corroded or stuck parts, or making unexpected trips to the hardware store for forgotten items, can significantly extend the project time.

Transcript
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I'm gonna install this two by four behind the valve for support this customer one and one of those fancy sliding shower head Doodad so we reuse the existing drop-ir in penetration and Delta told me to tighten that up with an Allen key for whatever reason I don't know I just didn't put a wrench on it because the instructions told me not to and I finished just in time To make it a date night. I'm thinking about trying the triple chocolate cheesecake

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