Bathtub-Drain8 min read

How to Replace Bathtub Drain Plumbing Parts: A Step-by-Step Guide

E
Editorial Team
2026-01-24
How to Replace Bathtub Drain Plumbing Parts: A Step-by-Step Guide

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How to Replace Bathtub Drain Plumbing Parts: A Step-by-Step Guide

Replacing your bathtub drain plumbing parts can seem like a daunting task, but with the right tools and a clear plan, it's a project most homeowners can tackle themselves. This step-by-step guide will walk you through the process, ensuring you get the job done right and avoid any costly plumbing mishaps. We'll cover everything from identifying the parts you need to removing the old drain and installing the new one. Let's get started in making those leaky tubs a thing of the past!

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Before you even think about diving under your bathtub, make sure you have all the necessary tools and materials. This will save you time and frustration in the long run. Here's a list to get you started:

  • New bathtub drain plumbing parts: This is crucial! Make sure you have the correct type and size for your bathtub. Knowing the manufacturer name and model of your existing set of bathtub drain plumbing parts helps a lot
  • Flathead screwdriver: For prying and loosening
  • Adjustable wrench: For tightening and loosening nuts
  • Channel-lock pliers: For gripping and turning
  • Plumber's putty: For creating a watertight seal
  • Penetrating oil: To loosen corroded parts
  • Old rags or towels: To catch water and protect surfaces
  • Gloves: To protect your hands
  • Safety glasses: To protect your eyes
  • Basin wrench (optional): Can be helpful for tight spaces
  • Hacksaw (optional): For cutting pipes if necessary

Having these tools on hand will allow you to replace the bathtub drain plumbing arts with ease.

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This might seem obvious, but it's a critical step. You don't want to be dealing with a flood while you're trying to replace your bathtub drain plumbing parts. Locate the water shut-off valve for your bathroom. It's usually found near the toilet or under the sink. Turn it off to stop the water flow to the bathtub. Once after double checking the water, it's time to move on to the next step

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This is where things get a little tricky, but stay with me.

  1. Remove the stopper: Depending on your drain type, you might need to unscrew it, lift it out, or use a specialized tool to remove it.
  2. Loosen the drain flange: Apply penetrating oil to the drain flange (the part that sits inside the bathtub) and let it sit for a few minutes to loosen any corrosion.
  3. Use a drain removal tool or pliers: Insert the tool into the drain and turn counterclockwise to loosen it. If you don't have a drain removal tool, you can use a pair of pliers, but be careful not to damage the drain.
  4. Remove the drain body: Once the flange is loose, you should be able to unscrew the drain body from underneath the bathtub. Have a bucket or towels ready to catch any residual water.

Removing the old drain is often the most challenging and time-consuming part of the process when replacing bathtub drain plumbing parts, so don't get anxious if it takes a little bit to remove.

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Before installing the new drain, it's important to clean the drain opening thoroughly. Remove any old putty, debris, or corrosion. You can use a scraper or a wire brush to get the surface nice and clean. A clean surface will ensure a good seal with the new drain.

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Now, for the exciting part - installing the new bathtub drain plumbing parts!

  1. Apply plumber's putty: Roll a rope of plumber's putty between your hands and press it firmly around the underside of the new drain flange. This will create a watertight seal between the flange and the bathtub.
  2. Insert the drain flange: Carefully insert the drain flange into the drain opening from inside the bathtub.
  3. Attach the drain body: From underneath the bathtub, screw the drain body onto the drain flange. Make sure it's snug, but don't overtighten it.
  4. Tighten the connections: Use an adjustable wrench to tighten the connections between the drain body and other plumbing components. Again, be careful not to overtighten.
  5. Remove excess putty: From inside the bathtub, remove any excess plumber's putty that squeezed out from under the drain flange.

Ensuring a proper seal and tight connections will keep your bathtub drain plumbing parts replacement project from having any leaks.

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Turn the water supply back on slowly and check for any leaks around the drain. If you see any leaks, tighten the connections or add more plumber's putty if necessary. It's better to catch leaks early than to deal with water damage later.

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Replacing bathtub drain plumbing parts can often be easier with the right tools. Here are a few items to help the job go smoothly.

Oatey 16" Tubular Wrench

Changing bathtub drain plumbing parts often requires working in a tight space. The Oatey 16" Tubular Wrench really shines by providing extended leverage. Its wide jaw is designed for plastic nuts and fittings, minimizing the risk of damage during installment. The cushioned handle helps for more comfort, making longer projects easier on the hands.

Why do we like it? The long arm and specially designed jaw of the Oatey Tubular Wrench simplifies disassembly and reassembly, ensuring a leak-free, durable connection.

RIDGID 31180 Model 818 Offset Internal Wrench

For tackling those hard-to-reach bathtub drain plumbing parts, consider the RIDGID 31180 Model 818 Offset Internal Wrench. This robust drain wrench offers an ingenious offset design for easy access to drain nuts in confined areas. Its durable construction ensures that it stands up in the face of stubborn, corroded fittings.

Why do we like it? Whether installing new connections or maintaining existing setups, this product makes it easy to replace bathtub drain plumbing parts efficiently.

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Here are some common questions and pro-tips when replacing bathtub drain plumbing parts

Q: What causes bathtub drain pipe leaks? A: Bathtub drain pipe leaks can stem from several causes, including corrosion due to age, physical damage from impact, or loose connections. Over time, the metal components can degrade, leading to cracks and leaks. Improper installation or inadequate sealing can also result in water seeping through the joints. Regular maintenance and inspection can help identify and address these issues early, preventing significant damage.

Q: Can I use any type of drain replacement kit to replace bathtub drain plumbing parts? A: No, you must use a drain replacement kit that is compatible with your specific style of the bathtub before replacing bathtub drain plumbing parts. There are several different styles of bathtub drain setups, and each has slightly different components.

Q: How often should I replace my bathtub drain plumbing parts? A: There is no specific timeframe, but you should consider a new tub drain when it leaks, it shows signs of significant corrosion, or when you're renovating your bathroom. Regularly inspect the drain and pipes for any signs of wear, such as rust.

Q: What if I strip the nut when removing the old bathtub drain plumbing parts? A: If you strip the nut during the old bathtub drain plumbing parts, first, apply penetrating oil and let it sit for a bit to help loosen the corrosion. If that doesn't work, use a pipe wrench. For especially stubborn nuts, consider using a nut splitter or cutting the nut off carefully with a hacksaw.

Q: How do I prevent clogs from reforming in my new drain? A: Prevent clogs from forming in your new drain by installing a hair catcher over the drain. Clean the drain regularly with enzyme-based cleaners to dissolve organic matter, and flush the drain with hot water after each use.

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Replacing your bathtub drain plumbing parts doesn't have to be a plumbing nightmare. By following these steps and taking your time, you can save money and gain a sense of accomplishment. Remember to double-check your connections and test for leaks to ensure everything is working smoothly. Now, go enjoy a nice, leak-free bath! <br><a href="https://www.amazon.com/s?k=bathtub drain plumbing parts&sort=price-asc-rank&tag=bestbathroomrenovation-20">[Shop Budget-Friendly bathtub drain plumbing parts on Amazon.]</a><br>

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