Automatically empty a greywater tank. Built-in float switch activates pump when water fills greywater tank. Computer controlled timing checks for water without on/off cycling. When it detects water, pumps until tank is empty and shuts off. Power use in “monitor” mode is less than .25 amps per day. 500 gph model has 3/4" port and draws .9 amp. 1100 gph size has 1" port and 3.3 amp draw. Quiet, long-life, cleanable strainer base. Needs filtered water.
DC Bilge Pump 
Automatically empty a greywater tank. Built-in float switch activates pump when water fills greywater tank. Computer controlled timing checks for water without on/off cycling. When it detects water, pumps until tank is empty and shuts off. Power use in “monitor” mode is less than .25 amps per day. 500 gph model has 3/4" port and draws .9 amp. 1100 gph size has 1" port and 3.3 amp draw. Quiet, long-life, cleanable strainer base. Needs filtered water.