So I am fed up with topping my 150 with buckets. I have looked at autotopoff.com and jbj for there top off devices. My question is it looks like these are for use with a reservoir for the water supply. I want to connect it directly to my ro unit and the autotopoff.com has a float switch used for turning a pump off and on and have read about using a solenoid for directly hooking up the ro unit will someone explain how this works before I purchase it. thanks in advance