In my work managing plant utilities, I’ve noticed billing discrepancies often trace back to flow sensor drift. Over time, sensors don’t just fail outright—they slowly lose calibration, causing flow measurements to skew. This leads to either overbilling or underbilling for water or steam usage, which can create confusion when reconciling utility costs.Regularly scheduling field calibrations and spot-checking flow data against manual measurements has proven helpful. I also found that environmental factors like temperature swings or vibration can accelerate sensor drift, so mounting and protection practices matter too.Have you come across subtle flow sensor shifts impacting billing or operational decisions? What approaches have you taken to catch and correct these errors before they become a bigger issue?