Pauljames
New Member
I have a '32 vintage house in woodinville. I've gutted the old bathroom, pulled the floor and am re-studding the terribly out of plumb walls for a Wedi shower in place of the old tub.
The space is 9' x 5'
The arrangement is, along one wall, right to left, SINK, TOILET, SHOWER with the down stack at the very end of the 9' wall on shower end..
Under the floor are 2x9 joists running perpendicular to the 5'
Under the floor joists was a 3 in cast iron waste pipe plugged into a vertical cast iron stack (on the shower end) leading to the basement.
I have demo'd all the cast iron which was leaking and replaced the vertical stack with 3in abs and have a 90 degree at the top projecting into the space under the floor joists (there is plenty of room to get the 1/4 in per foot slope across the 9' bathroom length.
Now I want to start assembling the plumbing. I want to continue the 3 in abs pipe across the 9' length of the bath using appropriate fittings along the way, first picking up the shower drain, next the toilet then the sink.
I plan to use 2in p trap for the shower dumping into the 3in pipe using what HD calls a 3 2 abs dwv hub hub hub "long sweep sanitary tee". The description goes on to say "the NIBCO ABS DWV long radius combination tee-wye .............. "
For the toilet, another similar fitting but of the 3 3 variety.
For the sink, similar fitting of the 3 2 configuration.
I've read a lot about not using "sanitary T's" on their back. So I am wondering if the fitting described is actually a "sanitary T" or if HD is using terminology that does not apply to the fitting and that it is actually not a sanitary tee but a "combo" that can laid on back.
Otherwise, for venting, I was thinking I could wet vent everything via the sink but there is a sunken medicine cabinet that takes up the space in the wall over the sink so it would be difficult to use san t to vent out the top.
the previous cast iron venting was accomplished by 2 inch pipe plugged into a T into the the horizontal cast iron waste.
I pulled that cast iron vent out and tossed it because it weighed a ton and wasn't centered properly between the studs, protruded way past the drywall surface forming a bulge...
So, can I put a 3 2 T in the new abs horizontal waste pipe between the sink and the toilet drain fittings and run a 2 in abs vent up through the roof? Would that be satisfactory venting for the toilet/sink/shower? If not, if the T'ing into the drain is a satisfactory venting technique, I could easily add another T with say a 1.5 or 2 in vent pipe and tie the two together in the attic and out the roof top.
I'd submit a drawing but I can't figure out how to do it, wants a "url" or some such.
Hope I have described this and my questions satisfactorily
Paul
The space is 9' x 5'
The arrangement is, along one wall, right to left, SINK, TOILET, SHOWER with the down stack at the very end of the 9' wall on shower end..
Under the floor are 2x9 joists running perpendicular to the 5'
Under the floor joists was a 3 in cast iron waste pipe plugged into a vertical cast iron stack (on the shower end) leading to the basement.
I have demo'd all the cast iron which was leaking and replaced the vertical stack with 3in abs and have a 90 degree at the top projecting into the space under the floor joists (there is plenty of room to get the 1/4 in per foot slope across the 9' bathroom length.
Now I want to start assembling the plumbing. I want to continue the 3 in abs pipe across the 9' length of the bath using appropriate fittings along the way, first picking up the shower drain, next the toilet then the sink.
I plan to use 2in p trap for the shower dumping into the 3in pipe using what HD calls a 3 2 abs dwv hub hub hub "long sweep sanitary tee". The description goes on to say "the NIBCO ABS DWV long radius combination tee-wye .............. "
For the toilet, another similar fitting but of the 3 3 variety.
For the sink, similar fitting of the 3 2 configuration.
I've read a lot about not using "sanitary T's" on their back. So I am wondering if the fitting described is actually a "sanitary T" or if HD is using terminology that does not apply to the fitting and that it is actually not a sanitary tee but a "combo" that can laid on back.
Otherwise, for venting, I was thinking I could wet vent everything via the sink but there is a sunken medicine cabinet that takes up the space in the wall over the sink so it would be difficult to use san t to vent out the top.
the previous cast iron venting was accomplished by 2 inch pipe plugged into a T into the the horizontal cast iron waste.
I pulled that cast iron vent out and tossed it because it weighed a ton and wasn't centered properly between the studs, protruded way past the drywall surface forming a bulge...
So, can I put a 3 2 T in the new abs horizontal waste pipe between the sink and the toilet drain fittings and run a 2 in abs vent up through the roof? Would that be satisfactory venting for the toilet/sink/shower? If not, if the T'ing into the drain is a satisfactory venting technique, I could easily add another T with say a 1.5 or 2 in vent pipe and tie the two together in the attic and out the roof top.
I'd submit a drawing but I can't figure out how to do it, wants a "url" or some such.
Hope I have described this and my questions satisfactorily
Paul
