Hi, I've done a few searches but they may be too specific or my terminology might not be correct. Anyway, I'm trying to measure how much was consumed from a tank but there is no flow in or out tag, only level. The tank drops steadily over the course of a day but on occasion, there are small increases in level. Is there any way to just measure the drop in level, not the increases? This is something that I'll have to check every day midnight to midnight so I'm trying to get an easy way to see this with some programming.
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