Vent for basement bath room
I want to install a bath room with toilet, tub/shower and sink in my unfinished basement.
There are three pipes combing from ground.
But there is not vent combing down from the basement roof.
Also, I have three contractors looked at my basement. I got confused with what they said.
The first one told me they can install new vent and the vent can go outside through sidewall.
The second one said that I do not need vent, just using wet vent and mechanical vent.
The third told me I have to install new vent starting from the roof of my house.
I kind of believe what they told me as they are experts.
Just want to know what is the best approach for the situation I have.
I live in Georgia.
Thanks.
--Michael