Good Practices Today Can Prevent Major Plumbing and Drain Problems that may occur tomorrow! Simply garbage disposal is also known as waste disposal unit, is a device underneath a sink that shreds food waste so that it can pass through plumbing. A garbage disposal is a great way to keep the smells of old garbage out of your garbage cans and kitchen. If you have a garbage disposal in your kitchen, you know that it is a great appliance that makes household duties less demanding. A long list of expensive plumbing and drain nightmares can occur if garbage disposal is not operated or maintained properly. Similarly, a garbage disposal can easily break down, block and clog the drains. So we should try to maintain and manage garbage disposal properly at home office.