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Unread 04-01-2021, 06:54 PM   #63
Moderator -- Mud Man
Davy's Avatar
Join Date: Jan 2003
Location: Princeton,Tx.- Dallas area
Posts: 33,517
Hi Scott. 5 to 1 mix is what we've used for as long as I can remember. It's easy to work with and will get plenty hard. Don't expect it to get as hard as your driveway because it won't. But, your driveway won't absorb water like you need your shower mud to do. When I buy 4 to 1 mud, I add a little sand to it. I don't know how much because I've never measured it. Even if you added a half gallon container filled with sand to a 50lb bag of 4 to 1, it will help it work better. I like the All purpose sand from HD.

The 3 inch hex will work fine for the shower floor.

Make sure and redo the cement board before you mud the shower floor. That way the mud will lock the cement board in at the bottom.
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