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Unread 02-22-2020, 02:12 PM   #4
Moderator -- Mud Man
Davy's Avatar
Join Date: Jan 2003
Location: Princeton,Tx.- Dallas area
Posts: 32,449
You said it's a Kerdi drain. Is there Kerdi under the tiles? If there's Kerdi or other surface applied membrane under the tile then I'd leave it alone. You'll be opening a can of worms if you damage the membrane.

A lot also depends on how long the tiles have been installed. If they were set yesterday then the thinset is probably wet enough to let go without damaging the membrane. But, I can't promise that.
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