Hi guys! I've been having some intermittent issues with my ATO (Tunze Osmolator). From time to time I come home and the ATO isn't doing its job. I check the float sensor, and its never gunked up and always able to move freely. I do have the Osmolator control by my Apex. I run Kalk in my reservoir and use the program below to safeguard my pH: Fallback ON If pHx2 > 8.35 Then OFF If pHx2 < 8.30 Then ON I'm pretty sure the code is good. Whenever I turn off power to the Osmolator and click it back on, it jumps back to life filling the tank back up until it reaches the float sensor. Its been annoying since I'm constantly checking the level in the back of the tanks return chamber. Curious if anyone else had this problem or has any insight! Thanks!