Why is the Right Capacity Important?

A tank that is too small will be insufficient during water cuts, while a tank that is too large creates unnecessary cost and hygiene risk.

Basic Calculation Formula

Capacity = Daily Water Consumption × Reserve Days

Daily Consumption by Usage Area

Residential

• Per person: 150-200 liters/day
• 4-person apartment: ~800 liters/day
• 50-unit apartment building: 40,000 liters/day (minimum 2 days = 80 tons)

Commercial Buildings

• Office: 50-80 liters/person/day
• Restaurant: 70-120 liters/person/day
• Hotel: 200-300 liters/room/day

Industrial Facilities

Varies according to production process. Process water, cooling water and personnel use should be calculated separately.

Example Calculation

Scenario: 100-unit residential complex, average 3 people/unit

• Total people: 300
• Daily consumption: 300 × 180 liters = 54,000 liters
• 2-day reserve: 108,000 liters = 108 tons
• Recommended Tank: 120-ton modular tank

Conclusion

Submit your project details for accurate capacity calculation. Lets determine the most suitable solution together with our free site survey and consultancy service.