This problem could be under the category of “magic”, except there has to be a perfectly simple answer. Situation – new add-on construction, concrete slab. Problem is a whatever-kind-of-plastic shower stall or enclosure needing a drain. The only shower enclosure drain I have seen is the kind that has a fastening ring that screws on underneath the shower floor, which is impossible on a slab. I can’t even imagine the solution, so does anyone know? We found (and ordered) a rear discharge toilet and rear discharge bidet, so these were NOT going to be my next questions. It must be very obvious that I am a “newbie”. Thank you!
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I know of 2 choices. One is a rear discharge shower pan the other is setting the shower down onto a 2" pvc pipe coming up from the trap. The fist choice allows a bit more 'wiggle' room.
Thank you for your reply. I got lucky and found an answer, surprisingly easy - I made a search using "shower drain" - what could be simpler??!!Discovered on the Internet at http://www.plumbrite.com. Their FAQ page has a short synopsis for their product, quoted here as follows: "Now a quick repair for leaking shower drains in fiberglass shower stalls, without having to tear the stall out or having to cut holes in ceilings. Introducing from PlumbRite Mfg., the WingTite replacement shower drain.
The WingTite shower drain is designed to replace leaking drains in plastic and fiberglass shower stalls without removing the shower.
The WingTite drain is for 2" ABS and PVC drain pipe, with adapters for 1.5" and 2" copper pipe DWV (Drain Waste Vent).
After removing the existing drain by following the detailed instructions provided, the WingTite drain is installed, ALL from the top, no below access is required!!
The WingTite has an oring that seals on the existing standpipe and (4) "wings" that extended under the shower hole to secure the drain to the shower base, much like a electrical wall box.
In a few short minutes the shower is repaired, saving you and the customer tons of time and money."
I have only done a couple of showers, but both where FG and installed on a concrete floor.The drains that came with them worked fine.The drain is basically a collar with seals and a nut that goes on the bottom.Install it on the base. Then set the base over the drain pipe.Then there is a rubber doughnut seal that goes between the pipe and the drain.
Yeah, many (most?) preformed shower units install by dropping the base over a piece of pipe protruding from the floor at the prescribed position, then installing some sort of tapered gasket. The pipe has to be positioned exactly, of course.