You 1000% can put a t on its back for venting purposes only. Your y is not only unnecessary but backwards anyway lol. Also can’t use a combi fitting on the vertical to horizontal for a trap arm, that’s the same as a y and 45 fitting and puts the connection drain below the trap weir. You really should not give a demonstration video if you are uneducated in the topic you are trying to educate on. Blind leading the blind with this video
Why is there a separate vent for the sink when the sink drain ties in the the 3" main vent?
Yea I saw that and had a little chuckle 😃
Because he used a combi instead of a Santee so he needed a vent before that fitting
😂
That sink vent is not only useless it's not code u do not vent like that
You 1000% can put a t on its back for venting purposes only. Your y is not only unnecessary but backwards anyway lol. Also can’t use a combi fitting on the vertical to horizontal for a trap arm, that’s the same as a y and 45 fitting and puts the connection drain below the trap weir. You really should not give a demonstration video if you are uneducated in the topic you are trying to educate on. Blind leading the blind with this video