Give a guy some PVC, glue & watch him go!!!
I love the radical slopes. The guy had the cleanout where the toilet pipe should be and there where no traps at the laundry tubs He concreted the pipes to the floor including the condensate.
Please send him a qualified plumber.
Please respond with any other violations you may see.
Also the dryer vent passed through drywall, ran about 30+ feet and the exterior vent was allowing water, rodents and not allowing proper venting.
You would of loved his basement finishing system. I love the handyman. This basement has mold/moisture cracks and then he starts drywalling & framing.