I have been going through the process of research, build and set up... still waiting on 1 item to test, finish up and get it working.
I am going to be using 2 maxi units to run my AWC and ATO. These processes will be controlled by 3 GHL optical sensors. Waiting on 1 optical sensor, it’s back ordered at GHL USA.
I’ve tested and confirmed that the Maxi pump can pull water direct from my liquid storage containers in my garage. The longest distance is approx 40 feet. The water is pulled up 9 ft, across 23 ft in the attic and down 8 ft to the pump. The pump then pushes another 5 feet to the tank.
I use 1/4” RO type tubing for the entire thing. It connects direct to the Maxi without leakage.
The optical sensors will be mounted to a home made bracket that will be held in the sump return section of my system. The top sensor will control the full function of the ATO and AWC full. The middle sensor is the ATO low and will trigger the pump to add RODI water. The bottom sensor will be the AWC drain stop and trigger the refill.
I will have the sensors for the AWC set so that 3/4 of a gallon will be changed at a time. The system will run the AWC 2 times in a day. The nice thing is my all my pumps can stay running during the water change.
I’m trying to figure out how to add a 4th float type sensor to trigger as a fail safe and keep things from over flowing. In the mean time the timers on the ATO & AWC will get set up as the fail safe.
One thing I have done for the ATO is to test the functions using buckets instead of my tank. It took some trial and error to get working right. Once I get my last sensor I’ll be setting the buckets up again and testing again. I need the system to be flawless before implementing it on my tank.
One of the biggest issues I have to overcome is the GHL programing. There is not much documentation covering running both ATO and AWC set up. Getting the ATO to shut off while the AWC is doing it’s thing, I have to figure that out.
Also, since the system above only needs 3 pumps, the 4th will be used to feed a Kalkwasser solution to my tank. It pulls RODI water and pushes it through a Kalkwasser stirrer.
These are my water storage tanks. You can see the RO tubing. The tall tank is RODI water. The short is mixed salt water.