I just installed the 3155 in the filtration chamber of my 5 gallon reef tank. I usually test my water salinity with a hydrometer and now every time I displace water to fill the hydrometer the ato starts filing my tank with.... freshwater ..... And worst, most of the times above the safe level triggering the alarm. I thought about unplugging the ato while I take water for the hydrometer and starting it back after I put it back in the tank. But guess what: when I plug it back in it starts pumping anyways, like the sensor doesn't even matter. Is it possible to be something wrong with the sensor or is it just its normal behaviour? Could someone else please test this and let me know if it does the same thing? Unplug and plug.
Thank you!
Thank you!