Ok so we built a new house one builder bad idea! Anytme we run the washer it drains into the two bath tubs and the one shower that we have and at times the dish washer we have ran a snake all the way up from outside up to the house if u don't have laundry going then the dishwasher drains fine please help me if u can

we have ran a snake all the way up from outside up to the house Are you saying that you snaked against the flow? Bad idea! Did you snake from one of the tubs? Back to you, Tom