Garbage disposal unit is an equipment that is found or added under your sink. It grinds the food scraps into tiny pieces which will then passes down the drain while there is a heavy flow of water. Inside its grinding chamber, you can find the blades that are responsible for turning your food wastes into tiny pieces. Also, there is an impeller arm and plate that force these tiny bits of food scraps and water down the drain. This makes the food waste passes easily the drain without clogging.