What must be ensured about the high water alarm in a pressure distribution system?

In a pressure distribution system, the high water alarm is a critical safety feature designed to prevent potential overflows and environmental contamination. Its primary function is to alert the user that water levels are higher than normal, which could indicate a failure or malfunction within the system.

Ensuring that the high water alarm does not activate the pump is essential because if the alarm were to turn on the pump automatically, it could exacerbate the situation by pumping out excessive effluent. Instead, the alarm's role is to signal that immediate attention is required, allowing the user or technician to assess the situation and take necessary corrective actions. This helps avoid damage to the system and potential regulatory violations due to improper waste disposal.