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The underground water tank capacity calculation determines the volume of water a rectangular tank can hold when buried underground. This calculation is essential for water storage planning, irrigation systems, and residential/commercial water supply management.
The calculator uses the volume formula:
Where:
Explanation: The formula calculates the cubic volume of the tank and converts it to gallons using the standard conversion factor of 7.48 gallons per cubic foot.
Details: Accurate tank capacity calculation is crucial for proper water storage planning, ensuring adequate water supply, designing irrigation systems, and meeting building code requirements for fire protection and emergency water storage.
Tips: Enter the length, width, and height of the tank in feet. All values must be positive numbers. The calculator will provide the capacity in gallons.
Q1: Why multiply by 7.48?
A: 7.48 is the conversion factor from cubic feet to gallons, as one cubic foot equals 7.48 gallons.
Q2: Can this calculator be used for above-ground tanks?
A: Yes, the same formula applies to both underground and above-ground rectangular tanks.
Q3: What if my tank has irregular shapes?
A: This calculator is designed for rectangular tanks. For cylindrical or irregular shapes, different formulas are required.
Q4: How accurate is this calculation?
A: The calculation provides theoretical maximum capacity. Actual usable capacity may be slightly less due to internal structures or safety margins.
Q5: What materials are best for underground water tanks?
A: Common materials include concrete, fiberglass, and polyethylene. The choice depends on water type, soil conditions, and local regulations.