Installing pre-formed shower base
I posted earlier regarding moving a drain for a shower. I'm getting ready to install the base, and am looking for feedback.
My base is pre-formed, and sits on a hunk of styrofoam to provide flex/support. I know this is not the preferred type of base, but this particular unit is the only one that will work for my tiny basement bathroom (I know people are going to post things like "that shower sucks, don't use it but at this point, it's either this thing or nothing). I purchased this AquaGlass shower at Lowes, and it's my understanding that all Aquaglass and ASB (American Shower and Bath) bases come with this styrofoam attached.
Here's directions if you'd like to look: http://www.asbcorp.com/manual/450025.pdf
What the direction do not tell me is how to secure the base to the floor so it won't move. My plan is to lay a bed of mortar on the floor and then set the base on top of the mortar. This will keep it set and keep any flex to a minimum. I was going to use based thin-set mortar that I used to lay my tile for this. Thanks in advance for the feedback.