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Help with plumbing venting 2 story house

2K views 14 replies 10 participants last post by  Javiles 
#1 · (Edited)
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#10 ·
I am removing cracked cast iron stack with pvc schedule 40. bathrooms directly over each other kitchen to left of stack 15ft. I know the vent needs to b above the water just not sure how to run it and how to tie into each fixture.

2 toilets
2 vanities
1 shower 1st fl
1 tub shower 2nd fl
Run the toilet vent that way up over across to top plate to 6" above flood level rim of highest fixture on 2nd floor. Run vanity up thru top plate and connect to vent stack with an inverted fixture cross at same location as toilet vent. The shower on first floor vent needs to come up thru inside wall and in attic connect to vent stack.

Or you can wet vent the toilet on first floor via the vanity on first floor.

Hope this helps.
 
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