Review on 🐠 Smart ATO System for Aquarium with Pump - Automatic Water Refiller, Fish Tank Sump Water Filler, Top Off System by Mayra Boyle

I'm giving it three stars because it looks like it's going to do A LOT of work! I kept a close eye on him as I'm not sure I trust him yet. Had to do things not in the instructions like adding a pipe hole above the water level in my holding tank because he built his own siphon and dumped a lot of extra fresh water into my brine tank. Take a siphon break and now when the pump shuts off the water stops and yes the end of my line is NOT in the main water. This unit, like all other ATOs, must be supplied with an anti-siphon element. A one-way check valve is also added at the end to prevent it from sucking salt water into the fresh water tank when the pumps are off or in pumping mode. This is a normal block.