Goulds Water Technology Sink Drain Systems are used to pump the drain water for laundry tray sinks, bar sinks, multi-compartment sinks, utility sinks, dishwasher, washing machines and other basement remodeling projects. Under the sink drain pumps allows the freedom to install fixtures where gravity drain lines are not available. These units are designed to for gray wastewater applications. They are not designed for use in septic tanks or underground vaults to handle raw sewage or effluents. Never use these units in hazardous or explosive locations nor for pumping chemicals.