kozzney
New Member
Hi everyone, thanks for the knowledge from this forum I've gained by reading a lot!
However, I think I have a unique situation. I'm expanding a half-bath in the basement into a full bath, and after getting all the concrete up, realized that of course right where I want the new locations for the fixtures to be, it's right on top of the convergence of literally all the drain lines in my house. See picture 1, current config. There are two 3" main stacks in the house on either side, and are labeled as such in the picture as they combine into the 4" main sewer line to the street.
1. First question is this; to add a shower I know I need to have that trap vented. Because of very tight spacing, can I vent it from the 3" stack line #2 as shown in picture 2? It's within 4 developed feet of the proposed shower trap, and I'll use 2" line for the vent.
2. Also, can I vent the toilet through the washing machine drain as proposed? And just for clarity, I plan to tie the new lavatory (not shown) into the laundry lavatory drain (and replace the ABS -> PVC connection there...).
Thanks in advance for any advice, hopefully the pictures are clear of what I'd like to do.
However, I think I have a unique situation. I'm expanding a half-bath in the basement into a full bath, and after getting all the concrete up, realized that of course right where I want the new locations for the fixtures to be, it's right on top of the convergence of literally all the drain lines in my house. See picture 1, current config. There are two 3" main stacks in the house on either side, and are labeled as such in the picture as they combine into the 4" main sewer line to the street.
1. First question is this; to add a shower I know I need to have that trap vented. Because of very tight spacing, can I vent it from the 3" stack line #2 as shown in picture 2? It's within 4 developed feet of the proposed shower trap, and I'll use 2" line for the vent.
2. Also, can I vent the toilet through the washing machine drain as proposed? And just for clarity, I plan to tie the new lavatory (not shown) into the laundry lavatory drain (and replace the ABS -> PVC connection there...).
Thanks in advance for any advice, hopefully the pictures are clear of what I'd like to do.
