i have a slab home where the shower pan drain is being moved 18 inches north..... i have the floor down too the slab. im going to rebuild it with the first layer of the pan with mesh/mud setting the slop. then the liner and mud.

question: from the slab floor to the top of the new drain thats in the second layer (not the peice that screws in)whats that dimension?

ok, maybe i should have introduced myself before i posted. hi, to all im 46 years old and have been doing tile,frameing, remodeling and all around work to homes. im am no pro. i know enough to know i dont know enough...... thats why im posting this question. P.S. i dont spell well and this whole web thing is new to me. i just got my first computer at home this year. ho what a world is out their..... good and bad!!!!!

Hi Ubendair ..... can I call you Ub for short?


The bottom section of the drain isn't important as to where it's positioned or even how low or high it is in relation to the existing substrate. Of course those decisions will effect the amount of mud used to build your slope .... but not the effectiveness of the shower-pan.
I usually try to keep the bottom section of the drain assembly close to or maybe even setting on the substrate. That means I mix less mud and can have more accomplished in less time.

The top layer of deck-mud requires much more attention. I have several photos linked off the main page of this site which might help.
Try here first: Shower Pan and liner

harry, thanks i did look at the pic's u have and learned alot. i guess i dident pay as close attention as i sould have. i looked at all the links here and other places before i posted the question, here on this site. and the nicest one i looked at i mite add. it looks to me like its just flush with the top of the first mud bed slop. i have put in a few tile showers before but they were all on 3/4" ply and we would double that up with another 3/4" and go from their. this is a 70 year old house. when moveing the drain i hit a 10" dia. clay pipe. "o shit". no not that bad after all. when the a/c came on as i was about to panic, it was only the "trunk line" for the heat-a/c. so the drain had to be moved up alot! so no thickness as long as its flush with the top of the slop is good.