What issue might a bubbler system indicate if it has a low wet well level but shows a high level reading?

A high-level reading in a bubbler system, despite a low wet well level, typically indicates a malfunction in the bubbler infrastructure itself. If the bubbler is clogged or plugged, it can restrict the airflow that is necessary to measure the water level accurately. The system relies on the pressure from the air being bubbled through water to determine the level; any blockage can lead to incorrect or artificially high readings.

In a properly functioning bubbler system, air bubbles create a pressure that corresponds to the depth of the water above the bubbler. When the bubbler line is clogged, it restricts the flow of bubbles and distorts the pressure readings sent to the control system. This inconsistency manifests as a high-level reading, suggesting that the water level is higher than it actually is within the wet well.

Other issues mentioned, like a broken bubbler or an air leak, would typically result in erratic readings or consistently low pressure. A pump malfunction could lead to a variety of issues, but it would not specifically cause a high reading unless it misrepresents the condition of the well itself. An incorrectly calibrated sensor may lead to consistent high or low readings, but in this case, the presence of low wet well levels contradicts that scenario.