A properly plumbed dishwasher drain hose is one of those things you never think about — until something goes wrong. Whether you're dealing with a soggy cabinet floor, a dishwasher that smells like a sewer, or standing water pooling at the bottom of the appliance after every cycle, chances are the drain hose is at the center of the problem. The good news: learning how to plumb a dishwasher drain hose is a manageable DIY task for most homeowners, and getting it right doesn't re