A cylindrical tank with a radius of 3 meters and a height of 10 meters is filled with water. If the water is drained at a rate of 2 cubic meters per minute, how long will

Tue, 05 May 2026 05:31:46 +0000

**How Long Will It Take for a 3-Meter Radius, 10-Meter-Tall Water Tank to Drain at 2 Cubic Meters Per Minute?**
Users across the U.S. are exploring how long it takes to empty large water tanks—whether for municipal supply, industrial use, or sustainability planning. A cylindrical tank with a radius of 3 meters and a height of 10 meters holds approximately 282.74 cubic meters of water at full capacity, assuming a perfect cylinder (calculated using π × r² × h). At a steady drain rate of 2 cubic meters per minute, this volume translates to a 141.37-minute drain—just over 2 hours. While real-world conditions like uneven filling or variable outflow can shift this, the baseline estimate offers clarity for infrastructure planning, emergency preparedness, or interest in water resource management. **Why This Tank Configuration Is Drawing Attention in 2024–2025**
The cylindrical tank model is no longer just a utility asset—it’s become a focal point in broader conversations around water efficiency, infrastructure resilience, and smart hydration systems. With rising concerns over water scarcity, aging pipelines, and climate-driven demand shifts, communities, municipalities, and industries are re-evaluating how water is stored, monitored, and discharged. This tank—efficient in volume, simple in form—represents a common yet critical node in water distribution networks, making its calculation increasingly relevant for public awareness and operational transparency in the U.S. **How Drain Time Is Actually Calculated**
To determine how long it takes to drain this tank, divide total volume by the outflow rate. With a radius of 3 meters, the base area is 28.27 square meters (π × 3²). Multiplying by height gives 282.