I have a plumbing question maybe someone will know the answer to. Might be related to sewage.
I see in houses and in my house there's always a small (1/4inch, maybe 3/8inch) clear plastic pipe coming from somewhere upstairs connecting into a 1/2inch black plastic pipe that goes down into the cement floor of the basement.
What is this for?
Also, mine has never had any water coming through it before but tonight i notice it has a constant drip coming out of it...what does this mean?