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Clean and Prepare Drain Area — Clean the Drain Opening and Pipe

Beginner

Part of project

How to Replace a Shower Drain in an Existing Shower Base · Step 4 of 9

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Once the old drain assembly is removed, thoroughly clean the drain opening in the tub. Use an old toothbrush to scrub away any remaining old plumber's putty, mineral deposits, and grime from the drain threads and the surface where the new flange will sit. Wipe the area clean with paper towels. Next, access the underside of the tub to remove the old rubber gasket and replace it with the new one that came with the drain assembly kit. Finally, prepare for the new drain by rolling plumber's putty into a rope and forming a ring around the drain opening on the top side of the tub. This will create a watertight seal when the new drain is installed.

Goal: Prepare for New Installation

  • A clean surface is essential for a good seal. Make sure to remove all old putty and debris.

Used in this video

  • Toothbrush (Tool Type: Cleaning Tools, Material: Plastic)Scrubbing the drain threads and opening to remove old putty and debris.
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FAQs

Why is the Husky Tub Drain Removal Tool essential for this project, and can I use standard tools instead?

This specialized tool is crucial because it grips the drain from the inside, allowing removal when there's no access from below the shower. Standard tools like pliers or wrenches usually can't get enough leverage or grip to unscrew a corroded drain from the top, risking damage to the shower base. It ensures you can remove the old drain without damaging the surrounding shower pan.

What key safety steps should I take before and during this shower drain replacement project?

Always turn off the water supply to the shower to prevent accidental leaks or flooding. Ensure good ventilation when using mineral spirits for cleaning, as fumes can be strong. Wear appropriate eye protection and gloves to protect against chemicals, sharp edges, and debris throughout the process.

How long should a beginner expect this project to take, and what's the approximate material cost?

For a beginner, expect this project to take 2-4 hours, allowing ample time for preparation, thorough cleaning, and proper sealant curing. The material cost, including a new drain kit, plumber's putty, and sealant, typically ranges from $30-$70, not including any specialized tools you might need to purchase.

What's the most common mistake beginners make, and how can I guarantee a watertight seal to prevent leaks?

The biggest mistake is inadequate cleaning of the drain opening and improper application of plumber's putty or sealant. To ensure a watertight seal, meticulously remove all old caulk, rust, and debris from the drain opening. Apply an even, generous bead of plumber's putty under the new drain flange, tightening it correctly to squeeze out excess, and always perform a thorough leak test before finalizing.

Transcript
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This pop-up drain plug that I had to buy for the new grain assembly was $28 in Canada, $20.21. I would have shopped around a bit ahead of time, probably find a cheaper version of that, but anyway I was in the middle of the job as we know, so what I'm going to do here is clean our drain out with an old toothbrush that I got. I'm going to fast forward at a certain point here so you don't have to watch this whole monotonous process, but basically what we're going to do is to put our new gasket in. This is underneath. This gasket goes underneath the tub here as you will see. There's our old one. Probably could reuse that if we clean it up, but only cost like two bucks or something. Anyways, we're going to slip our new gasket in there in place. Underneath here you'll see that. I'm going to take some Teflon tape. I'm going to put this around the threads. This is just an extra precaution to avoid leaks like this. As I say, I'm going to fast forward through this, but I just want to show you the process now, and then we'll just record the whole rest of it. So we'll have that ready. Then I'm going to put some plumbers putty along here. I might put it on the outside edge. I've done this before, but I don't think it matters. I might put the putty out there. Actually, I probably put it in there. Anyways, I'll probably put the putty here actually. Now that I recall, what I did when I changed out the same unit in the upstairs of this house.

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