High water alarms are part of the apparatus of which pump?

• A. Sump pump
• B. Well pump
• C. Sewage pump
• D. Jet pump

Answer: (C)

High water alarms are designed to warn you when a liquid level in a holding basin is rising toward a point where it could cause a backup. In a sewage pump system, wastewater sits in a basin until the pump can move it to the sewer line. If the pump fails, becomes clogged, or there's a blockage in the discharge, the level can climb quickly. An alarm attached to the sewage pump alerts you to this problem so you can take action before a spill or backup occurs. That monitoring and alert function is typically included with sewage pump assemblies because of the higher risk of waste-water backflow and the need for prompt notification.

Well pumps and jet pumps are focused on moving clean water and maintaining pressure, not handling sewage levels in a holding basin, so high-water alarms are not as integral to their standard equipment. Sump pumps do manage water in basements and can have alarms as well, but the specific association of high-water alerts with wastewater handling is why this feature is tied to a sewage pump in many contexts.