I had a clogged bathroom tub drain so I poured some Liquid Plumber down it. Now the silver metal flange around the top of the drain has become rusted and is breaking apart. I have no access to the bottom of the tub other than cutting a hole in the ceiling below. Any way of repairing/replacing the flange. Thanks John
That flange/drain screws into the tub "shoe" which is a brass "elbow" under the tub. The shoe is sealed to the bottom of the tub by a rubber gasket. The flange seals to the top with putty. (Just so you know)
It is *possible* to unscrew the flange part using a tool which fits the cross hairs (or other means). Often, these are in there tight from corrosion and you could wind up ruining it.
To get a replacement you would have to run around and try to match the thread size with what is available today.
If you have an access panel at the front of the tub it may be (barely) possible to remove the shoe from underneath. Otherwise you're looking at patching the ceiling.
Jim
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