One of the most common reasons your dishwasher isn’t draining well is due to a clog in the drain tube. This drain line, or drain hose, sends water out of the dishwasher tub after a cycle ends. If the drain line is blocked, water can’t flow out of the tub. Reach the Service Experts Heating & Air Conditioning pros at 587-404-0790 for plumbing services in Edmonton.