Essentially any large flush through my house (washer, shower) has started coming up through my basement drain in the floor. I bought this house two years ago for full price and already am 20k deep in hidden repairs (all from basement flooding, yayy). I can explain if I need to, but I really just don’t have extra funds to put to this after the others. I’m thinking I can’t bathe with more than a gallon of water and not wash dishes or clothing until I can fix it.
Can always rent an electric 3/4" snake from a box store for under $50 I think. Make sure you’re close to the feed point or you’ll be wrestling with sewage-soaked coil. I’d go from the floor drain that is backing up if you don’t have a toilet you can pull right next to it. Goal is to feed it to the sewer main. Scoping is the right answer, but a powered snake rental and an hour of dirty work has a chance of giving you some breathing room.
It’s literally a basement drain just before it exits my house. Everything drains before it hits this point, if that makes any sense? I have no idea of direction, because I have the corner house, but tbh if I pry up the cover somehow it’ll be worth exploring
Edit: that type of snake isn’t even avaliable at the store 2 hours from me. Lol. I am now imaging like 50 people in my town owning one and not sharing and also never using them again