One of the most common reasons your dishwasher isn’t draining correctly is on account of a blockage in the drain line. This drain line, or drain hose, flows water out of the dishwasher tub after a cycle is completed. If the drain line is clogged, water can’t flow out of the tub. Contact the Rob's Albertan Service Experts pros at 780-800-9047 for plumbing services in Edmonton.