1. What is a Water Tank Size Calculator?

Definition: This calculator estimates the required water tank volume based on daily water consumption, desired storage days, and system efficiency.

Purpose: It helps homeowners, engineers, and planners determine appropriate water storage capacity for residential, commercial, or agricultural needs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Water tank volume (cubic meters)
• \( C \) — Daily water consumption (m³/day)
• \( D \) — Storage days (days)
• \( E \) — System efficiency (dimensionless, 0-1)

Explanation: The daily consumption multiplied by storage days gives gross water needs, then divided by efficiency to account for system losses.

3. Importance of Water Tank Sizing

Details: Proper tank sizing ensures adequate water supply during dry periods or emergencies while avoiding excessive costs for oversized tanks.

4. Using the Calculator

Tips: Enter your daily water consumption in m³, desired storage duration in days (default 7), and system efficiency (default 0.9). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I estimate my water consumption?
A: Track meter readings over time or use standard values (e.g., 0.15 m³/person/day for households).

Q2: What's a typical storage duration?
A: 7-14 days is common for households, while agricultural systems may need 30+ days storage.

Q3: What affects system efficiency?
A: Factors like evaporation, leaks, and incomplete drainage typically reduce efficiency to 0.8-0.95.

Q4: Should I round up the calculated size?
A: Yes, tanks come in standard sizes - round up to the nearest available commercial size.

Q5: Does this account for rainfall collection?
A: No, this calculates storage needs for known consumption. Rainwater systems require different calculations.