You don't often see the lav drain broken where the threads are. Someone must of really torqued on this one.
I normally put a little pipe sealant on those threads where the rubber washer goes to prevent water from winding it's way down the threads. The manufacturer sent a new drain out and it's working great now.
I normally put a little pipe sealant on those threads where the rubber washer goes to prevent water from winding it's way down the threads. The manufacturer sent a new drain out and it's working great now.