1. What is Underground Water Tank Design Calculation?

The underground water tank design calculation determines the appropriate volume of a water storage tank based on daily water demand and required retention time. This ensures adequate water supply while optimizing construction costs and space requirements.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( V \) — Required tank volume (m³)
• \( D \) — Daily water demand (m³/day)
• \( R \) — Retention time (days)

Explanation: The formula calculates the minimum tank volume needed to meet water requirements for the specified retention period.

3. Importance of Proper Tank Sizing

Details: Correct tank sizing is crucial for ensuring reliable water supply, preventing overflow or shortage situations, optimizing construction costs, and meeting regulatory requirements for water storage.

4. Using the Calculator

Tips: Enter daily water demand in cubic meters per day and desired retention time in days. Both values must be positive numbers. Consider adding a safety factor of 10-20% to the calculated volume for practical applications.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect daily water demand?
A: Daily water demand depends on population served, usage patterns (residential/commercial/industrial), climate conditions, and local water consumption standards.

Q2: How is retention time determined?
A: Retention time is based on water supply reliability, emergency requirements, fire safety standards, and local regulations. Typical values range from 1-3 days for residential use.

Q3: What safety factors should be considered?
A: Include factors for peak demand, emergency storage, evaporation losses, sediment accumulation, and future expansion needs.

Q4: Are there different formulas for different tank shapes?
A: While this calculator provides volume requirements, actual tank dimensions will vary based on shape (rectangular, cylindrical) and site constraints.

Q5: What additional considerations are needed for underground tanks?
A: Underground tanks require considerations for soil pressure, water table level, corrosion protection, access for maintenance, and ventilation requirements.