In restaurants or food facilities there are two drain line terms. Grease line or domestic line. The grease line is the drain that collects grease from kitch or food processing areas and sends it to the grease trap. The domestic line is the line that is connected to hand washing station, toilets, ice machines, etc. These lines should be grease free. We are able to identify and give professional services to avoid flooding, shut downs, or future issues To keep your business in operation. We are available 24/7 for any emergency.