Hi guys, here's the problem...we just had someone create a laundry room. The washing machine drain taps into the tub waste drain. When we started to do our laundry, the waste water from the washer starts to fill into the tub and drain from there. We called the remodeler and he said that will happen due to the pressure in the drain pipe. He says he can fix the problem (possibly) by removing more drywall, adding new pipes, more money, etc. Any cheaper and easier ideas out there? Right now, we don't have a laundry basin, could we have the washer drain into a separate laundry tub to help relieve some pressure in the drain line?? Any suggestions out there? Thx! -Ellen