Skip to main content

Clean Threads and Apply Teflon Tape — Install New Tub Fixtures

Beginner3 hours

Part of project

Tub Fixture Replacement: A Step-by-Step DIY Guide · Step 3 of 5

Helpful?

In this video

After removing the old fixture, the host prepares the shower arm for the new installation. First, he thoroughly cleans the old, white Teflon tape off the exposed threads of the shower arm. He then takes the new roll of Teflon tape provided with the kit and wraps it tightly around the threads. He emphasizes wrapping the tape in a clockwise direction, which is the same direction he will be tightening the new fixture. This ensures the tape cinches down into the threads rather than unraveling. He suggests applying four to five complete wraps for a good seal.

Goal: Create a watertight seal on the shower arm threads.

  • Wrapping Teflon tape clockwise is critical. If wrapped counter-clockwise, it will unwrap as you tighten the new fixture.
1.4K views441 minute
HydroNYC

480K subscribers

View Channel

FAQs

What's the absolute first and most critical safety step I need to take before replacing my tub fixtures?

The most critical step is to turn off the main water supply to your house or, if available, the specific shut-off valves for the bathroom. This prevents flooding and ensures you can work safely without unexpected water bursts. Always verify the water is off by turning on the old fixtures before starting removal.

Besides an adjustable wrench and a screwdriver, are there any other tools I might unexpectedly need for this project?

While an adjustable wrench and screwdriver are core tools, you'll also need plumber's tape (Teflon tape) or pipe thread sealant for leak prevention. A utility knife can be useful for cutting old caulk if your escutcheon plates are sealed, and a headlamp can improve visibility in tight spaces.

As a beginner, is the 'beginner' difficulty rating accurate for this project, and is 3 hours a realistic time estimate?

Yes, this project is generally beginner-friendly if you follow instructions carefully and prepare properly. The 3-hour estimate is realistic for a straightforward replacement without major complications like seized pipes or unexpected plumbing issues. Allocate extra time if you're new to DIY or encounter unforeseen challenges.

What's the most common mistake beginners make that causes leaks after installing new tub fixtures?

The most common mistake is not applying plumber's tape or thread sealant correctly, or over/under-tightening connections. Always wrap plumber's tape clockwise around threaded connections 2-3 times, and tighten fittings snugly but avoid excessive force which can strip threads or damage components.

Transcript
Hide

and then the washers if they're needed. Clean off the old. Now you got the old Teflon tape off. Get the Teflon that came in the kit. And the question you might have is which way do I put it on? I'll put it on counterclockwise. I'll put it on clockwise because it can be very confusing. Yep. So you put it on clockwise. And this here, this Teflon is really cheap compared to the kind you buy in the store. So you want to make sure you put on at least four or five wraps and just kind of put it in there snug. I turn my phone around so it looks like I'm putting on counterclockwise, but really it's clockwise. And pull it off like that. And the new adapter has a rubber washer in there so you don't need

Auto-generated transcript. May contain errors.