[bigfootbob]

I want to install a toilet, shower and vanity on concrete floor. I have water but want to know the best way to proceed. Drill holes in concrete or build up the floor. This a steel building. This near the edge so I could dig under the slab.

I have an rv dump or sewer next to my building and will hook into that.

Thanks

Bob

[ballengerb1]

If you build up the floor you'll have room for your drains but where will they drain to? Drill holes to where, you need to reach a main drain. I think you need to bust up the floor of the room and a trench all the way to an existing drain.