What is the minimum required intake pressure of the apparatus being resupplied?

The minimum required intake pressure of the apparatus being resupplied is important because it ensures that the water being delivered can adequately fill the tank without risking siphoning or cavitation within the pumping system. An intake pressure that is too low could lead to potential operational issues, affecting the effectiveness of water delivery.

Specifically, having a required intake pressure of 20 psi ensures there is sufficient force to facilitate a stable and consistent water flow into the tank, which is crucial in emergency situations where time and efficiency are paramount. This pressure helps prevent potential disturbances in water flow that can come from sudden changes in water level or supply line conditions.

In fire suppression operations, where mobile water supply is often crucial, maintaining a specific intake pressure can also support the efficient functioning of firefighting equipment, enhancing overall response times and effectiveness. Therefore, 20 psi serves as a critical baseline that balances operational capacity with the physical limitations of the equipment in use.