broken bolts while replacing toilet

Old 05-28-01, 10:53 AM
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we removed our old toilet for new flooring installation. the toilet came up without a problem but the screws into the concrete were so corroded that they broke off and are deep enough into the concrete that we can't get them out. what can we do??? thanks to anyone that can offer advice.
Old 05-28-01, 11:03 AM
Mike Swearingen's Avatar
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You mean the screws holding the flange to the floor?
I'm not a pro plumber, but here's what I would do.
You will have to drill them out (with regular bit the size of the screw).
If it also messes up the anchors in the concrete, re-drill two larger holes in the concrete with a masonry bit, and install two new expandable lead anchors.
Use flat-head, wood-screw threaded lag bolts to screw the flange back down.
Whenever I replace a wax seal, I replace the toilet bolts sticking up out of the flange too, for the same reason.
Good Luck!

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