What are the optimum water conditions to use my Dolphin robotic pool cleaner?

For optimum operation of the robot, the water temperature, pH, chlorine and salinity must comply with the following, as indicated in the warranty statement you received with your robot: Chlorine: Max 4 PPM pH: 7.0-7.8 PPM Temperature: 6-35 C NACl: Max = 5000 PPM