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Try Kerdi on a 4:1 GU packed and sloped pan Mix it to the wetness of beach sand. Never use 2by fours for a curb. … etc,etc

Are you ok? You sound like you’re on sedatives.

Good job bro.

How thick for the concrete base and how thick for the mud layer?

Nice work

Going back to home depot is the worst. That's a gnarly screeding method. Do yourself a favor and make that segment a short with a banner "gnarly way to mud".

never seen a jig like that, but kind of cool. i mean by the time you figure where to put it, level it, and screw it, i can have the perimeter done, but if it helps thats all that matters. i havent really changed to schluter, but have gone away from liner pans after 40 years. not that i ever had leaking issues with a liner, just figured i can alleviate a few issues that always bugged me. for one a water in water out system ends up a bit to high, just too high of a curb and customers never really liked that. another issue i hated was the extra flare out at the bottom and also the time it took to do the curb. i never screwed thru liner on inside of curb, so i always lathe and mudded which was time consuming. also because i didnt like embedding any wall boards into the mud and didnt screw thru the liner, i always felt the bottom of boards werent sufficiently secure. with a bonded drain, single slope pan, i alleviate all these 100 percent. i still do mud pans, but use a membrane on top and use a foam curb and foam wall boards (not schluter though) now i can screw all the way down to secure boards, no worries on curb and it takes less time, no flare out caused by the liner and overall height of shower floor is lessened by at least an inch. so for me its win across the board.