removing rusty drain from antique sink

peeler · Oct 30, 2009

I'm restoring a 1923 Kohler pedestal cast iron sink,, and having a bit of trouble
removing the drain pipe. There is rust between the pipe and sink body. I've been hitting it with spray oil periodically, tapping it with a hammer. I'm assuming the visible flange ring is attached to it permanently but not sure...
any ideas? would a little heat be effective, safe?

hj · Oct 30, 2009

drain

Cut it off with a hacksaw, or SawZall. Heat could cause the enamel to chip off. The exposed piece is part of the drain, not the sink.

Sponsor · 2022-01-29T12:20:58-0800

Master Brian · Oct 30, 2009

I'd be worried the sawsall would vibrate and chip the enamel as well. Any chance you have a dremil or a diegrinder/cutter? If you try the sawsall, use a good sharp blade....

A little heat would probably get it off, but like HJ said, it could pop the enamel. I think I used a diegrinder to cut the one off my antique clawfoot tub!

Doherty Plumbing · Oct 30, 2009

If you have the sink out just simply cut the drain off with a hacksaw as close to the underside of the sink as you can. Make sure you cut/pry off the nut holding the drain in place.

Good luck!

NHmaster · Oct 31, 2009

A dremel with a sharp wheel works also. Cut the nut,

hj · Oct 31, 2009

saw

There is NO vibration from a SawZall that would damage the enamel. WE do it all the time. But you have to cut it off under the sink, not on top.

removing rusty drain from antique sink

peeler

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hj

Master Plumber

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Master Brian

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Doherty Plumbing

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NHmaster

Master Plumber

hj

Master Plumber

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