What is a cascade on a frac tank?

A cascade on a frac tank refers to a system where multiple frac tanks are arranged in a sequence to manage the flow of fluids, typically during hydraulic fracturing operations. This setup allows for efficient storage and transfer of water or other fluids, minimizing downtime and ensuring a continuous supply. The cascade design helps in optimizing space and facilitating the handling of large volumes of liquid, while also allowing for easy access and monitoring of the tanks.