Solution System189Service Manual – Advance 7765 / Nilfisk CR1500Overview – ESP/Recycle OptionOn machinesequipped withthe ESP/Recycleoption, wastewateris pumped fromthe Recovery Tankto the Solution Tankto be recycled tothe Scrub Brushes.The Detergent Pumpadds detergentto the solutiondownstream of theBall Valve.The vacuummotor pulls thewastewater (darkblue arrows) fromthe Squeegee tothe Recovery Tank.The wastewaterpasses through theSolution Inlet Filter,then to the ESPSolution Pump thatpumps the filteredwastewater (lightblue arrows) backinto the SolutionTank.The Recovery High Switch (red float switch) in the Recovery Tank and Recycling System On/Off switch on theinstrument panel control the ESP Solution Pump.The Detergent Pump pumps detergent (red arrows) from the Detergent Tank into the solution stream. Thesolution/detergent mixture (violet arrow) is then delivered to the three Scrub Brushes.Refer to the Recovery System section for more information on the recovery tank configurations andoperation, and the ESP/Recycle option.ScrubBrushesSolutionTankDetergentTankDetergentPumpESPSolutionPumpRecoveryTankSolutionInletFilterInletStrainerBall ValveSqueegee
