I have 2 vent pipes over my garage. One vents a bathroom in my basement and the other vents my laundry room. Can I merge them? Since the Bathroom vent is larger than the laundry room vent, I would like to tie the laundry room vent into the basement bathroom vent just prior to where it exits the roof. The laundry room is one floor above the basement. Can this be done without causing problems? Neither vent is connected to the main stack.
Vin
Vin