Mikey
Aspiring Old Fart, EE, computer & networking geek
The two vanities are currently served by a double sanitary T with the vent above and the drain below going off to the final stack to the septic system. Can I replace the double san-T with a single san-T pointed a foot away and use a double elbow at the vanities? Or must I replicate the double san-T at the new vanities' location and tie it back to the vent/drain with elbows above and below?