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Attempt to Unscrew Drain Flange — Remove the Old Drain Flange

Beginner

Part of project

How to Remove and Replace a Bathtub Drain Flange · Step 3 of 7

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After removing the stopper, attempt to unscrew the main drain flange. The standard method is to insert the jaws of pliers into the drain's cross members and turn counter-clockwise. In this video, the cross members are corroded and break off during this attempt. This is a common problem with older drains and necessitates an alternative removal method.

Goal: Bathtub Repair

  • If you feel the cross members bending or cracking, stop and proceed to the next step to avoid making removal more difficult.

Used in this video

  • Needle-Nose Pliers (Tool Type: Pliers, Pliers_Type: Needle-Nose) · optionalAttempting to grip and turn the drain flange via its cross members.
  • Channel-Lock Pliers (Tool Type: Pliers, Pliers_Type: Channel-Lock)Attempting to grip and turn the drain flange via its cross members.
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FAQs

How difficult is this project for a beginner, and how long does it typically take?

This is a beginner-friendly plumbing project, but patience is key, especially with old, corroded parts. Expect it to take 1-2 hours, depending on how easily the old flange comes out and the amount of cleaning required. Factor in additional time for thorough leak testing to ensure a watertight seal.

Do I really need a special tub drain wrench, or can I use other tools to remove the old flange?

A dedicated tub drain wrench (like the Husky Double Ended Tub Drain Wrench 16PL0128) is highly recommended. It provides the best grip and leverage, minimizing the risk of stripping the flange or damaging the tub. While some might try large pliers or screwdrivers with a hammer, these often cause more damage and frustration.

My old drain flange is stuck or severely corroded. How can I remove it without damaging the tub?

If the flange is very stuck, try applying penetrating oil and letting it sit for a few hours to loosen corrosion. Use the tub drain wrench firmly but carefully to avoid stripping the interior. For extremely stubborn or corroded flanges, you might need to carefully cut the crossbars inside the flange with a reciprocating saw and then break out the pieces, always protecting the tub surface.

What's the best way to ensure a watertight seal and prevent future leaks when installing the new flange? Should I use plumber's putty or silicone?

Plumber's putty is generally preferred for this application. Apply a generous, even bead of Oatey Plumber's Putty underneath the lip of the new flange before setting it into the drain opening; it should squeeze out when tightened. For added security, you can also wrap Teflon tape around the drain shoe threads before screwing in the new flange.

Transcript
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the drain itself by using a needle nose pliers and an adjustable wrench or a plier in my case. As you notice, I managed to break the corroded cross-members and now everything is messed up. This is a common thing which happens to old drains, so don't worry as there are many ways to get it out. I tried this simple method first. I get a dremel-like tool to cut in two

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