One of the most common reasons your dishwasher refuses to drain well is on account of a obstruction in the drain tube. This drain line, or drain hose, flows water out of the dishwasher tub after a cycle is completed. If the drain line is obstructed, water won’t flow out of the tub. Contact the BW/Cook Service Experts pros at 574-218-6404 for plumbing services in Elkhart.