trap adaptors - required by code??
For anyone that happens to know plumbing code:
A neighbor (Arlington, VA) is getting ready for final inspection on a whole house remodel + addition that's dragged out over 3-4 years. An inspector told homeowner that some of the lavatory sinks need trap adaptors installed underneath. Those sinks have been done and in use for over a year. Does code really require that? Not sure, but I think their project was approved under IRC 2003.