Basement shower drain directly into gravel?
I am remodeling my basement and I pulled out the old shower stall that was in the bathroom. Underneath, I found no drain pipe. Apparently, the shower had just been draining directly into the gravel beneath the foundation. Is this terrible? Is there any way I can build another shower in the same place? There is a toilet right next to the shower. Does that mean there is a drainage pipe right there that I can tap into? I'm a novice. Please help! Thanks!
--Chris