Im about the give it up!
In my osmostank i want 2 sensor at diffrent highst, 1 to say its empty switch socket s1 on for filling it up, sensor 2 will tell s1 to switch of beacuse its full.
I tried to set it up and im lost, both sensors do the same thing, so when the water level drops it triggers sensor 2 to fill up and 6 cm later in the tank its switches of because the level is high.
The sensor in the bottom is never used, and my Ro unit goes for very short periods.

Can i do something else to program this so its really work ?