Yes, a dishwasher can be installed in a kitchen without a garbage disposal. A garbage disposal is not a requirement for the installation or operation of a dishwasher.
Dishwashers are designed to handle food scraps and debris that remain on dishes, but they have built-in filters and self-cleaning mechanisms to prevent these particles from clogging or damaging the dishwasher. Before loading the dishes into the dishwasher, it's generally recommended to scrape off large food particles and empty liquids or sauces into the trash or sink.
To ensure proper drainage and prevent clogs, the dishwasher is typically connected to the kitchen sink's drain line. The dishwasher's drain hose is connected to a small air gap device or directly to the garbage disposal unit if one is present. However, if there is no garbage disposal, the dishwasher can still be connected to the sink's drain line by using a separate drain line or a high-loop installation.
A high-loop installation involves securing the dishwasher drain hose to the underside of the countertop, creating a loop that is higher than the sink drain opening. This loop prevents wastewater from flowing back into the dishwasher, ensuring proper drainage. Alternatively, a separate drain line can be installed to connect the dishwasher directly to the sink's drain line.
It's always recommended to consult the dishwasher's installation manual or seek professional assistance when installing a dishwasher to ensure proper setup and functionality in your specific kitchen configuration.