This YouTube video provides a detailed explanation of how to calculate the water demand for a storage warehouse sprinkler system using the CMSA approach, a specific type of sprinkler designed for storage applications. The video uses NFPA 13, the standard for sprinkler system installation, to illustrate the process of calculating water demand and explains how to determine the necessary K-factor, operating pressure, and number of sprinklers needed. Additionally, the video includes the host stream allowance and water supply duration based on the type of commodity stored, concluding with the calculation of the total water demand for the warehouse.