Can I put in a shower drain (where there was none before) without having to put a hole in the slab?

Question

Right now, we have a 1/2 bath - just a sink and toilet. I want a shower installed, and I was hoping to get a fiberglass shower insert installed where the sink is presently. Obviously, there is no existing drain pipe through the floor where the shower drain would normally be (because it's only a sink there now). Is there a way to install a shower insert by using the existing sink plumbing? Could we step up to the shower to allow room underneath it for any piping? We have a slab floor, and I don't want to run a new pipe into the concrete.

Answer 1

Yes, just raise the shower enough to fit the plumbing under it running out to the wall into a drain line.  You will need to build a trap of some kind into the plumbing to prevent sewer gas from coming into the shower.

Answer 2

just a suggestion but the lavatory pipe has to go into the floor somewhere  find the main lavy drain line and a two inch sanitary tee into the line as close as possible to the floor and then run a two inch trap under the center on the shower drain,being sure to use a glue trap not one with a nut . The shower will be wet vented through the lavy stack and all should be well as long as you have enough height for drain slope

Answer 3

You can make the shower a step up, but is that high enough for the sink drain?

Answer 4

You can have your shower cubicle at floor level and use a saniflow to pump the water away, that is probably the easiest way to do it you would have to box the saniflow in but that should not present a problem any good plumber s merchants will sell them

Answer 5

if you cant build it up so it drain right, theres a tank you can put under it that the shower can drain into it and it has a pump built into it for these reasons i dont no where to get them so you would have to research that

i did a lil seach heres a start for you http://www.plumbingsupply.com/sewage.htm...

you could maybe do something like this http://www.jmsonline.net/SHOWER-DRAIN-BI...