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Prepare and Apply Plumber's Putty — Install the New Drain Flange with Putty

Beginner4 hours

Part of project

How to Install a Bathroom Sink Drain and P-Trap · Step 3 of 7

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In this video

Take a generous amount of new plumber's putty from its container. Knead and warm it in your hands to make it pliable, then roll it out into a continuous, uniform rope that is about 3/4 inch or 2 cm in diameter. Carefully wrap this rope of putty around the underside of the new drain flange, ensuring it forms a complete circle.

Goal: Create a waterproof seal

  • Use a single, unbroken rope of putty. Do not use multiple pieces, as this can create a path for water to leak.

Used in this video

  • New Bathtub Drain Flange (Material: Metal, Color/Finish: Chrome)The part to which the plumber's putty is applied before installation.
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FAQs

Is 4 hours a realistic time estimate for a beginner, or should I allocate more time for this project?

The 4-hour estimate is a good average for someone with basic DIY skills. However, beginners should budget an extra 1-2 hours, especially for dealing with corroded old components or unexpected issues. Rushing the leak test is a common mistake, so take your time and don't feel pressured by the estimate.

What's the most common mistake beginners make that leads to leaks, and how can I prevent it?

The most common mistake is improper sealing or overtightening/undertightening connections. Ensure you apply plumber's putty correctly around the drain flange and hand-tighten all plastic connections. For metal components, hand-tighten and then only a quarter turn more with pliers to avoid stripping threads or cracking pipes.

The guide mentions plumber's putty for the drain flange; can I use silicone sealant instead for a better seal?

While silicone sealant can be used for the drain flange, plumber's putty is often preferred for its ease of use, pliability, and easy removal if adjustments are needed. If you choose silicone, use a kitchen/bath-grade product and allow adequate curing time before running water to test for leaks, as it's harder to adjust once set.

Beyond the listed tools, are there any other essential items or safety gear I should have on hand for this plumbing project?

Yes, always have a bucket or old towels ready to catch residual water during old drain removal. Safety glasses are recommended, especially when cutting pipes or dealing with potential splashes. Gloves can also protect your hands from grime and chemicals, making the job more comfortable and clean.

Transcript
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Now coming in with some plumber's putty. I've got this listed in the description below the video. This is very pliable and it will seal the drain base really well. You can roll it in your hands. Make sure you have at least three quarters of an inch or two centimeters. You can use a little extra if you want. Wrap around the drain base. Don't use multiple layers. Use one layer only. Oh, look at that debris. Let's clean this up.

Auto-generated transcript. May contain errors.