One of the most typical reasons your dishwasher isn’t draining correctly is because of a obstruction in the drain line. This drain line, or drain hose, sends water out of the dishwasher tub after a cycle ends. If the drain line is blocked, water isn’t able to flow out of the tub. Reach the Aramendia Plumbing, Heating and Air pros at 210-404-4233 for plumbing services in San Antonio.