The Axeon Hydro 750 RO
"The Axeon Hydro 750 RO System seems to work fine until the water tank reaches full. The float switch is not an 'ON' or 'OFF' switch. It slowly closes when the tank reached full. As the water slows to a trickle the Axeon RO unit shuts off. Since the float valve is not completely closed the water pressure bleeds off and the RO unit starts again. It is like the water flow slows enough the trigger the unit to stop, but since the float valve in not completely closed, the water bleeds of and the RO unit starts again. This on and off cycling continues and it never seems to reach the full point to where the RO unit completely shuts off."