Try to think back to a time when your only option when washing dishes was to wash them by hand. Nowadays, it's rare to walk into a home and not see some sort of dishwasher. If you have a busy household, you probably consider the dishwasher an indispensable appliance. Every now and then, the dishwasher can start acting up and present deeper problems. For instance, say you run a load but when you open the door, you find a pool of water at the bottom of the unit. It's possible you just uncovered a plumbing issue that you have to deal with. Potential causes of water not draining properly from a dishwasher can range from clogs in the filter basket to the drain hose all the way to the garbage disposal. If those aren't the causes, odds are you have a more serious problem stemming from a blocked sewer line. Don't let the problem fester or you could end up with expensive water damage on your hands. Common causes...