bigbadd69
Jun 24, 2011, 05:52 PM
Should I have the drain in front of or behind the vent
massplumber2008
Jun 24, 2011, 06:10 PM
Hi BB69...
The PTRAP goes after the vent with a standpipe of about 30" out of the trap... see image below. Install a full-size cleanout in the vent at a height that is above the PTRAP standpipe just in case you need to snake the drain in the future, OK?
Mark