Tell me this guys. If you were to split the line out on your RO with a "Y" and put two autotop off floats on each line. Would they work independently? When one opens it fills, when the other opens it fills, then when both are open they both fill.
Reason I was asking was because I wanted to split my line, have a float in the RO tank that is active all the time, then I wanted one in the Salt tank that is on a ball valve. That way when I was ready to mix salt. I just turn the ball valve on and walk away. then when it is full, I just pour in salt, and turn the valve off.
Would this work?