Read what I wrote Mike. I said, "Massachusetts also hasn't adopted any portion of the IRC that pertains to venting, drainage..."

And for the final time I'll say it again, no one can just take our word for anything when it comes to plumbing waste/vent design...they MUST ask their local plumbing inspector BEFORE proceeding to install any drain/vent system presented on line. Inspectors interpret code differently from town to town and regardless of what the code book says, if an individual tries to argue code they are only setting themselves up for trouble with that inspector for the ENTIRE JOB...simply not worth it!!!



Mark