A cylindrical tank with a radius of 3 meters and a height of 10 meters is filled with water. If water is drained from the tank at a rate of 5 cubic meters per hour, how long will it take to empty the tank completely?

Tue, 05 May 2026 16:39:17 +0000

**Why the Size and Drain Rate Matter for Water Tanks in Modern Infrastructure** Curious about how long it takes a massive cylindrical tank—3 meters wide and 10 meters tall—to fully drain when losing water at 5 cubic meters per hour? This question blends everyday geometry with real-world utility, and for good reason. As water conservation and infrastructure efficiency gain momentum in the U.S., understanding these dynamics becomes essential for homeowners, facility planners, and sustainability enthusiasts alike. #### The Scale of a Large Water Tank A cylindrical tank with a radius of 3 meters and a height of 10 meters holds approximately 282.74 cubic meters of water—calculated using the formula for the volume of a cylinder, V = πr²h. With each meter cubed carrying thousands of gallons, this tank volume reflects a significant public or private water reservation capable of serving multiple daily needs. Its compact yet robust design suits locations ranging from small communities to industrial facilities.