Ballvalve
General Engineering Contractor
quote; OK, so 5 fixtures, with only one, the kitchen sink, 18 feet away, can tie into the 3" stack and go out the roof with just one pipe
Maybe, and maybe NOT. You are NOT telling us HOW the individual vents are getting into the attic so they can be tied together. HOW you do the piping is the important thing, NOT that the "sink is 18' away". That could mean MANY things, some of them legal and others not. It is like you saying, "My car can go 150 mph, is it okay if I drive it", without specifying if you mean on the road or at the track.
Okay so I think some posts got deleted...
But my lousy 2" kitchen sink vent, pure vent is on a mostly up run and then a sharp curve up and right into the 3" stack.
This is an extraordinarily simple house to plumb because I did engineer a truss and wall combination which gives me a 12" deep experior wall to super insulate and run pipes with out a single hole to drill. We laid the half trusses down on the slab, connected them at the ridge and stood the whole house up in one day. Actually enough room in the roof truss members to do the HVAC ducting too.
The whole house was plumbed up in part of a day. NO drills!
But lots of controversy here because I probably didnt describe it all very well.
I came to you small black pipe pros because the Head of building department says call a supply house for info, I have not done any ABS piping for several years, and the "plumber" is a double stacker of toilets that about killed me when i said we could put it all [fixture vents] in one 3" vent stack. Even after I made him run a new pipe for the upstairs toilet.
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