Mark Polman
Member
Remodeling a second floor bathroom and I was planning on adding a second sink. Our original layout only had one, and my wife does not want to share anymore. I opened the wall to take a look, and here's what I have (see picture attached). Can I tie the second sink into the existing drain by extending it to the left, which would leave the second sink around 6 feet from the vent (behind toilet), and the original placement of the sink will move a little closer to the toilet at around 3 1/2 feet. I what I've read, the distance from the vent to a sink's p-trap for a 1 1/2 diameter drain pipe is 3 1/2 feet. So, I'm assuming that the answer to my question is 'no'. But, I was watching a YouTube video (screenshot attached) where they were installing water lines with a layout similar to my own and their drains looked farther than 3 1/2 feet. Their drain looked larger than 1 1/2, so if it's 2 inch, it still looks farther than 5 feet from the vent. What are my options here? My search for distances from the trap to the vent have been all over the place as well, so what are the distance for 1 1/2 and 2 inch drains from the vent?
Thank you,
Mark
Thank you,
Mark