6.4 The Comyn oil/water Separater To fill the separator, slightly open scum-valve, also high level test and air release valve to vent the separator during filling. When water flows freely from these valves close and stop filling Close filling valve Before commencing to pump oily water through the separator, ensure that water discharge valve on ship's side is open to allow the water effluent to be pumped overboard6.4 The Comyn oil/water Separater • To fill the separator, slightly open scum-valve, also high level test and air release valve to vent the separator during filling. When water flows freely from these valves close and stop filling. Close filling valve. • Before commencing to pump oily water through the separator, ensure that water discharge valve on ship's side is open, to allow the water effluent to be pumped overboard