If a bubbler system has a high wet well level but shows a low level reading, what could be the problem?

In a bubbler system, the mechanism relies on the introduction of air to the sensor tube, which helps determine the level of wastewater in the wet well. When there is a high level in the wet well, a properly functioning bubbler system should show a corresponding high reading. If there is a discrepancy, where the wet well is high but the level reading is low, it indicates a flaw in the system.

The correct answer highlights that a broken bubbler or an air leak is a likely cause of this issue. If the bubbler itself is malfunctioning or if there is a break in the tubing, it cannot effectively transmit the air pressure needed to accurately reflect the water level. In essence, the air pressure changes that should occur with rising water levels do not happen properly, resulting in an inaccurate low reading despite the actual high level present in the wet well.

Other potential problems, like a clogged or plugged bubbler or low power supply, may affect the system's operation, but they typically manifest differently than the specific scenario given in the question. The primary concern here is ensuring that the air pressure system is intact and functioning, as any break would lead to misleading readings about the wet well's status.