Water DoesN't Deplete Totally in a Dishwasher The strain line is for taking the water leaving the bathtub responsible. This water is taken by it straight to your family strain. Link the drain line straight to your home strain. If they're blocked clear your houseis plumbing using possibly deplete items or resources. If you FAIL to access the strain contact a plumber. Detach the strain line in the dishwasher,