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Install Overflow Plate Base — Install the Drain Shoe and Overflow

Beginner

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How to Replace a Bathtub Waste and Overflow Drain Assembly · Step 7 of 9

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Now move to the overflow. From inside the tub, place the flat trim piece (cover plate base) over the overflow opening, holding it in place. From the back of the tub, thread the securing nut onto the overflow pipe's threads. Tighten the nut by hand until it's firm, compressing the gaskets on either side of the tub wall to create a waterproof seal. The double-sided tape applied earlier helps keep the gaskets from shifting.

Goal: Secure the overflow pipe

Used in this video

  • Overflow Cover Plate Base (Material: Metal)Base for the decorative overflow plate
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FAQs

How long should I expect this bathtub drain replacement project to take, especially if I'm a beginner?

For a beginner, plan to dedicate 3-5 hours for this project, including preparation and clean-up. Accessing the old drain and ensuring proper sealing of the new one can take time, so don't rush the process to avoid potential leaks later on.

What are the most common mistakes beginners make that lead to leaks after installing a new bathtub waste and overflow?

The primary cause of leaks is inadequate sealing. Ensure you apply a generous amount of plumber's putty (like Oatey 14 oz. Plumber's Putty) under the drain flange and correctly position and tighten the overflow gasket. Always perform a thorough leak test before re-enclosing any access panels.

Do I need special tools to remove a stuck or corroded old drain flange, or will standard tools suffice?

While a screwdriver and tongue-and-groove pliers (Channellock 430/440) are often sufficient, a severely corroded flange might require a specialized drain wrench or carefully using a hacksaw (Husky 10 in. Close Quarters Hacksaw) to cut the crossbars. Avoid excessive force to prevent damaging the tub's finish.

What are the most important safety precautions I should take during this bathtub drain replacement?

Always turn off the water supply to the bathtub before starting to prevent accidental flooding. Wear safety glasses to protect your eyes from debris, and ensure good ventilation if using plumber's putty or sealants. A drop cloth (TRIMACO Stay Put Canvas Plus) will protect your bathroom floor and catch any spills.

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Then over here you put this little flat piece over here. You hold it in place. You grab your nut here. And you just put it in place. Tighten it up nice and tight. See how it's the white piece stays in place when you can do that. Nice and tight. Then you grab your

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