I have the ATK connected to an Innovative Marine 40 Gal tank (had to remove the float since it wouldn't fit) - my RO/DI reservoir is on the floor and I am filling the overflow (the chamber with the return pump). I installed the anti siphon on the high end (at the tank) since I was having a problem with water siphoning from the tank to the reservoir - the siphon problem has been fixed. My problem is, sometimes (not always) the ATK fills too much and triggers the alarm. This typically happens in the middle of the night (but sometimes during the day as well). Do the optical sensors require light? This tank is in a bedroom, so at night it is dark. When this happens I check the overflow and the water IS up over the top sensor, so for some reason the bottom sensor didn't turn off. The real problem is, it works fine 90% of the time, so diagnosing this is going to be a PITA. When the alarm happens I normally get up and unplug the unit and go back to bed (remember when I said it normally happens in the middle of the night??? ). The sensors are clean - this has only been set up for a week and it has done this since day 1. This is not connected to my Apex. Does anyone have any thoughts on what to try/check?
Thanks!!!
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