clogged toilet

We built our home in 2013 here is Fort Mill SC. We've always had issues with an upstairs bathroom. We recently had a plumber come in to figure out what the constant clogging and back filling of the tub was all about. Turns out, the sink, toilet and tub all flowed into 2 back to back 90 deg...

Hello all! I'm sure that there is a thread that has already addressed this, but I couldn't find one per se. I have 2 bathrooms in my home and neither of them are flushing. All other drains seem to be working. When running my washing machine or running water down the kitchen sink, the toilet...