When designing a lift station, what capacity should be ensured for grease already in the trap?

Ensuring that incoming hot grease does not heat the collected grease in a lift station is crucial for effective operation and maintenance. Hot grease can lead to several issues, including increased viscosity and potential for blockages. When grease reaches higher temperatures, it may not effectively consolidate and can prevent proper functioning of the lift station as it can solidify and harden, leading to stoppages in the system.

Maintaining a temperature-controlled environment for the grease helps in preventing these problems, allowing for easier separation and management of grease in the trap. By avoiding heat from incoming grease, the integrity of the current grease trap maintenance can be upheld, ensuring that the system operates efficiently without risk of buildup or operational disruption.

This focus on temperature control contrasts with the other options that address characteristics of grease management but do not specifically target the heat-related challenges that can arise in lift station design.