Boy! Have I ever missed something. This was the question,
Can I convert a typical basement sewer drain (4 inch PVC)
No mention of a wye except in the title and not tied back to the question.
Milo saw a tie in and Bobsleder answered back. Now we're talking about vertical or horizontal wyes whit both ends of the pipes fixed.
I have a few questions,
1- What ever happened to the floor drain you were gonna convert to a toilet?
2- Milo came out about a wye. What did he see that I missed?
3- What's with the wye? Did you now decide to follow code and vent the toilet?
Inquiring minds wanna know! Cheers, Tom