Hi. I am adding a bathroom to my basement and I have drawn up some plans for the pipe to tie into the main stack. My main questions are regarding venting. Since I am unable to tie into the vent on the main floor, I was looking to see if what I have drawn up on drawing 2 is good to go or if I need to do anything different. Also, on drawing 2 I wanted to see if I'm ok to come in from the toilet using the 3 3 3 wye connector as shown. In drawing 1, is it ok to go from the toilet flange directly into a 1/4 bend 90 (not enough fall if I use a long sweep). Then where it ties into the main stack, is it good where sanitary tee sits right over 90? Thanks for any and all feedback.
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