Rear Discharge Toilet Plumbing

[fishfun83]

My house is constructed on pilings and is about 10 feet above ground level. Underneath the home is all concrete with no provisions made for a standard toilet. The sanitary drain runs along the side of the home about 3 feet off the bottom slab. There is an existing wall on the side of the slab where the sanitary is located.

With that being said, I would like to install a rear discharge toilet and a sink but I have no idea how to plumb a rear discharge toilet or how to tie in the sink drain. Also wondering if I need a vent line. Any help would be appreciated. I have attached my crude drawings to help.

 

[SHEPLMBR]

Are you using a pump system like a sani-system?

 

[fishfun83]

Are you using a pump system like a sani-system?

I have no idea what a sani-system is. My sanitary line that I will be connecting to goes to the public sanitary system. My intent is to connect the rear discharge toilet, along with the sink, directly to the sanitary line.

 

[fishfun83]

Need some help please. I was not planning to use a pump system with the toilet. The sanitary drain is right outside the wall so I would like to have the discharge drain straight to the sanitary. Maybe this is not possible?

 

[frodo]

find the center of the toilet drain write it down
measure from edge of tub over to the toilet make a mark at 18'' measure from floor up
make a mark, that is center of drain for toilet

measure from your 18''' mark over 18'' make a mark

what you have left is where your sink sits



when you figure out where the toilet will sit, make a hole in the wall center of the drain for a 3'' pipe

move over to the lav, find the center where you want the sink

make a hole to the outside at 19'' from floor to center of pipe
go outside

 

[frodo]

outside tie in