Expert Guide

Babu

Utility Calculators

Septic Tank Design Calculator

Quality Inspector

Kaka

Find required septic tank dimensions.

📐 Formula & Method

Volume = Users × Rate (70-100L) × Days + Sludge space.

Vol = (Users × 0.1) + Sludge

📋 Worked Example

5 users:
• Req. Vol ≈ 2.5 m³
• Suggested Size ≈ 2.0 × 1.0 × 1.5 m

❓ Frequently Asked Questions

Cleaning frequency?

A well-designed septic tank should be cleaned every 2 to 3 years.