1. What is Underground Water Tank Size Calculation?

Underground water tank size calculation determines the appropriate volume capacity for water storage based on daily demand and required storage duration. This ensures adequate water supply during periods of low availability or high usage.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( V \) — Required tank volume (m³)
• \( D \) — Daily water demand (m³/day)
• \( T \) — Storage duration (days)

Explanation: The calculation multiplies the daily water consumption by the number of days the supply needs to last to determine the total storage capacity needed.

3. Importance of Proper Tank Sizing

Details: Correctly sizing water storage tanks is essential for ensuring continuous water supply, optimizing construction costs, and maintaining water quality through proper turnover rates.

4. Using the Calculator

Tips: Enter daily water demand in cubic meters per day and the desired storage duration in days. Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect water demand calculation?
A: Factors include number of users, consumption patterns, seasonal variations, and intended uses (domestic, commercial, industrial).

Q2: How many days of storage should I plan for?
A: Typically 2-3 days for urban areas, up to 7-14 days for rural or emergency storage, depending on water source reliability.

Q3: Should I add a safety margin to the calculated volume?
A: Yes, it's recommended to add 10-20% extra capacity to account for unexpected demand increases or emergency situations.

Q4: What about evaporation losses?
A: For underground tanks, evaporation is minimal compared to above-ground storage, but still consider 1-2% loss in calculations.

Q5: How does tank shape affect capacity?
A: While volume is the primary factor, tank shape affects construction feasibility and cost. Cylindrical tanks are often most efficient.