That's the Pro version. Maybe later. ;-)sfsuphysics said:My float switch is attached to a closed state-solenoid on the tap water side of things, mean it takes power to open the switch, when the float switch pops, it kills the power, solenoid shuts off water and stops flowing through the RO system. The fact that the solenoid is made of brass is irrelevant because its on the input side of things and no worse than copper pipes in your house, water doesn't enter the system until after the solenoid.