Contractor Talk - Professional Construction and Remodeling Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
819 Posts
I do 16.5" off the rough floor...(or 15"off the bottom plate)

ive never had an issue with this height...its lower than normal...most go 17" off the bottom plate, but when I used to do that once in a while I ran into issues like your having....

you can also reverse the trap....the trap can have a 2"-4"dip in it....by reversing the trap and creating an extra large dip it typically fixes the issue....I do this all the time on retrofits on older houses
 
1 - 1 of 1 Posts
Top