Thank you again HJ. I didn't realize that the section in question could be horizontal but that makes sense. I ran that 2" vent section up at a 45 because I originally intended for it to be a dry vent. I later realized it could be converted to a wet vent to simplify the lav routing that would...
I've looked through quite a few threads looking for specifics on using a wet vent on a toilet arm under IPC. From what I can tell, IPC lists no specific toilet vent requirement. In the attached drawing, a 2nd floor bathroom group is draining into a new 3" stack. The stack runs down to the main...
Let me try to answer the points you raised, regarding the floor joists, they are significantly over sized with 2x12 @ 16" OC spanning only 12'. I oversized from 2x10 because I knew there would be drilling and notching (not to exceed code requirements). I agree that things are convoluted due to...
Thank you HJ. The roof vent is 3". There will be mulitple vents converging in the attic to this one 3" roof penetration and they will exceed 7 square inches in area.
Also, I posted additional questions in another post here:
You just answered one of the questions I posted. I don't see a...
Wet vent stack diameter reduction
The existing 3" wet vent stack serving one main floor bathroom group needs to run up an additional story (new 2nd story addition). For easier routing, is there a reason why the stack can't be reduced to 2" above the upper most waste inlet as long as the total...
Run the treadmill parallel to main level floor joists then cut out and box in one bay which should give you a minimum of 7 1/4" extra headroom (if empty, 2x8 construction). This would hurt the resale value less than a damp pit a potential buyer has to fill in.
FWIW, I teed the incoming 1" service line immediately after the gas meter to feed my 140K btu water heater in the detached garage (used for heat) and ran the parallel 1" line to feed the house furnace, water heater and appliances. There are charts that give maximum BTU output by pipe size and...
Here's the scenario. The house is a 2 bedroom 1 bath ranch with a massive add-a-level additon. The addition extends out the back (kitchen) on the main floor and the second story covers the entire main floor. The completed house nealy triples the house size. The new upstairs contains 3...