One of the most frequent reasons your dishwasher won’t drain well is on account of a blockage in the drain path. This drain line, or drain hose, sends water out of the dishwasher tub after a cycle is completed. If the drain line is clogged, water won’t flow out of the tub. Call the Roy Inch & Sons Home Services by Enercare pros at 226-270-1164 for plumbing services in London.