Skip to main content

Reinstall Drain Flange and Test for Leaks — Leak Test

Intermediate24 hours

Part of project

How to Install a New Bathtub and Drain Assembly · Step 8 of 9

Helpful?

In this video

Return to the inside of the bathtub. For the best seal, apply a thin rope of plumber's putty to the underside of the drain flange rim. Carefully align the drain flange with the drain shoe below and begin threading it in clockwise by hand. Once it's snug, use your pliers or drain wrench to tighten it fully. Be careful not to overtighten and crack the tub or strip the threads. Clean away any excess plumber's putty that squeezes out. Reinstall the drain stopper. Finally, fill the tub with water again and drain it while checking underneath for any leaks to confirm the repair was successful.

Goal: Complete Repair and Verify

Used in this video

  • Pliers (Tool Type: Plumbing Tools, Pliers_Type: Needle-Nose Pliers)To grip the crossbars of the drain flange and tighten it.
60.9K views60515-30 minutes
Home Repair Tutor

671K subscribers

View Channel

FAQs

The tool list includes some unusual items. What are the truly essential tools I'll need for this bathtub installation, focusing on the specialized tasks?

Beyond basic hand tools like a tape measure and screwdriver, you'll definitely need a reciprocating saw for demolition, a level, pipe wrenches or channel locks for plumbing, a caulk gun, and a drill for securing the tub. Ignore items like bistro sets or candles from the provided list; they are not needed for this project.

This project involves demolition and plumbing. What are the most crucial safety precautions I should take throughout the process?

Always wear appropriate personal protective equipment, including eye protection, work gloves, and a dust mask, especially during demolition. Ensure the water supply is completely shut off before disconnecting any plumbing to prevent flooding. When lifting the new tub, use proper lifting techniques or get assistance to prevent back injuries.

The project is rated 'intermediate' with an estimated 24 hours. What aspects make it challenging for a DIYer, and is the time estimate realistic?

The intermediate difficulty stems from the precision required for plumbing connections, ensuring the tub is perfectly level, and potential subfloor or stud repairs. The 24-hour estimate is for active working time, not calendar days; expect to spread this project over several days or a long weekend to account for drying times and unexpected issues.

What are the most common mistakes DIYers make with the drain and overflow assembly that lead to leaks, and how can I prevent them?

The most common mistake is improper sealing. Ensure you use plumber's putty or silicone caulk correctly around the drain shoe and overflow gasket, making sure all connections are tight but not overtightened. Always perform the leak test step thoroughly before enclosing any plumbing, as undetected leaks can cause significant water damage.

Reinstall Drain Flange and Test for Leaks — How to Install a New Bathtub and Drain Assembly (Step 8, Video 1) | Stesso