i need a stack vent for 1st floor of a 3storey building. cannot reach existing stack vent for upper floors, and the stack vent has to go out through a side wall.
can i bring the vent up to ceiling of 1st floor and then turn 90 degrees to side wall to go out to open air?
so i have the first vertical vent section right above where i connect the vent to the drain system, then after a 20ft horizontal run, i have another vertical section of 2 floors up.
Now what do i consider to be the main vent's location? where the vent connects to the drain or where the vent go 2 floors up till above the roof?
why do you need to know that? your main vent would be the continuation up of the stack that you are connecting to. The new vent would be considered a branch vent. what are you tying into it? if it's only a single fixture it probably doesn't have to remain full size
my situation is: it is a 3 storey building. 2nd, and 3rd floor are independent apartments, i believe the main vent over stack is somewhere in 3rd floor apartment. As it is old building, it only has the main vent above the stack and 2nd floor uses wet venting.
i am totally redoing the 1st floor, my question is about the venting for all the drains on 1st floor so it would be the vent for 1st floor. i probably should not be called as "main vent", based on the reaction, i guess "main vent" is for the whole stack.
since i cannot connect to the main vent over the stack (somewhere in 3rd floor).i am sending the vent from the basement to the ceiling of 1st floor then.. what do i do? take it out to the back wall and turn again to go up till the roof?
then when i calcuate critical distances for 1st floor drains, i from the drain to the vent from basement to ceiling? or to the main vent for the stack?
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
DIY Home Improvement Forum
3.1M posts
319.6K members
Since 2003
A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Helping You to Do It Yourself!