Ron

So on a job where who ever set this cast sink caulked the underside thick, making it almost impossible to remove without causing any tiles to crack or break, owner did not want to go there opted not to attempt it at this time.

I don't find many caulked this bad and not able to remove them with no damage to the tiles.

Lets hear some tips on getting that sink out with out cracking, chipping, breaking or causing any of the tiles to come freed up...

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ChrisConnor

There used to be a product that would soften caulk. I took a while, but it worked. Cleaning up the melted caulk would be a mess.

I used a pvc cable saw to get a toilet up yesterday, maybe that could work.

You could also buy one of those kits like they sell for removing windshields. It's kinda like a pvc cable saw, but the handles are removable and more ergonomic or maybe one of those windshield removal knives, they make a cold knife and a hot knife that has a heated blade.

SummPlumb

Could you not cut it with a razor?

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Ron

Tried, it was set solid, I don't think there was away to accomplish it without damage to the tile, I tried shape putty knife and a heated putty knife, looking up on the bottom side you could see it was set into a full ring or caulking, oozing out around the edges.

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Stephen Hawking: If the government is covering up knowledge of Aliens, they are doing a better job of it then they do at anything else.

SummPlumb

Well, sometimes you have no choice. If they want to upgrade, sacrifices have to be made.

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Cal

May i suggest ;

http://www.fein.de/fein-multimaster/us/en/main/

I have the cheap , Dremel version ,,,, need to spend the big $ and get the Fein Multimaster

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"The unforgivable crime is soft hitting. Do not hit at all if it can be avoided; but never hit softly."

Bill

I have used a razor knife, a string saw, and sometimes I use caulk softener.

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futz

Get a couple thin, sharp putty knives - one narrow and one wide. Get a couple spares too. Try just forcing them under (use a wobbling action - use those corners to cut) to cut the caulking, sometimes with a little help from a thin screwdriver as a wedge. If that won't work, hammer them under to cut the caulk (you'll usually destroy one knife per sink - the reason for the spares). As you get more cut you can add more wedges to put a bit of tension on the caulking and hold the sink up so the caulking is easier to cut. Works great. I've removed many different types of glued in sink that way.

OldSchool

you could take a hanmer and smash the cast iron sink into bits

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niteowl

i use a milwaukee heat gun to soften caulk. not hot enough to damage. i also use an o-ring pick to remove caulk. i use small wood wedges as i go, careful not to raise up sink to much at one time. this also works on urinals and wall hung lavs.