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Author:
Palm329 (VA)
Happy 4th of July everyone. To follow up on my previous basement plumbing posts:
I have a new 3” branch in my basement and this is routed right under a new basement bathroom.
I am planning on roughing in a toilet with a 3” stub off the main branch, and the lav will have a 2” drain connecting to the toilet - wet venting the toilet.
However, the shower is on the other side of the room, and I plan on connecting the 2” shower drain independently to the main branch.
My question is this - I know I must independently run a dry vent to this shower drain. However, this shower drain and it’s connection to the 3” branch is right under the middle of the bathroom. Therefore, my dry vent would have to angle over kinda horizontally to a wall and then up the wall. This would violate the rule of no horizontal vents until you are above the flood rim of the shower.
So what do I do in this situation? Do I need to aim the shower’s P-trap towards a wall, then install a sani-t, with a vertical vent heading straight up the wall? In this case, the drain would then double-back towards the center of the room and drop down into the branch drain.
Or, can I bring the p-trap horizontal to a horizontal Wye, with the other branch of the wye acting as the dry vent and running horizontal and turning up at the wall?
Thank you
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Author:
packy (MA)
how much height do you have from the horizontal drain to the floor level?
can you run the drain to the spot where you want to bring the vent up, turn the drain from horizontal to vertical, put a san tee in the vertical with the branch picking up the shower trap and the vent coming out of the top.
it will look like this. all 2 inch of course.
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Author:
Palm329 (VA)
Packy I believe that is workable. What’s the max trap to vented sani-t distance on that 2” drain? I plan on using a 36”x60” shower so it’s a bit of distance to the wall.
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Author:
packy (MA)
my code say 5 feet from trap to vent with 2 inch pipe.
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