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dkkll
05-07-2011, 07:17 AM
installing a k-9135/k-9136 drain in my new shower
the rough in guide does not state the size of the whole to be cut in the subfloor
i am not sure if the flange is supposed to sit on the bottom of the 4 screw bases or on the rim around the flange

cacher_chick
05-07-2011, 07:47 AM
12979

Kohler Drain

hj
05-07-2011, 08:09 AM
The top of the "flange" is even with, or slightly below, the subfloor/mortar preslope. Then the safety membrane is laid onto the sloped mortar base and clamps between the two pieces, usually with a bead of silicone to make a better seal.

cwhyu2
05-07-2011, 09:38 AM
And it is always good to bevel the sub floor to fit the shower drain.Not just a hole cut in the sub floor.