Need connection info on building a shower drain.
Hi all and thanks for reading. I'm redoing my bathroom. I want to tile the entire shower including the floor. I've read a lot about how to build a presloped mortar bed and liner. What I don't fully understand is how the drain connection is made. Right now I have plywood on the subfloor and the existing PVC drain is 2". It sits just about an inch lower than the plywood. The original shower had a fiberglass pan and the drain was snugged up against the PVC with a rubber gasket. Never seemed to be a problem with leaks or anything. Now with it removed it seemed kind of wobbly in the hole because the hole was cut much bigger than the PVC. So I basically have 3 questions:
1. Do I need to stiffen the PVC pipe in the hole somehow? If so, how?
2. What do I use to make up the difference between the PVC and subfloor and
3. How is the connection made from the drain on the subfloor to the part of the drain above the mortar bed?
Sorry but I couldn't find any good close up shots here or on the internet of how this would be done.
Greatly appreciate the help.
Thanks.