Water System Calculators

Use our interactive tools to estimate your water harvesting potential, required storage capacity, and project financing.

Rainwater Potential

Roof Surface Area (m²)

50m²200m²1000m²

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Estimated Annual Yield

121,210L

Based on 713mm annual rainfall

Happy with the estimate? Request a detailed rainwater quote.

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Water Autonomy

Household Size

Daily Usage (L/person)

Tank Capacity (Liters)

Days of Autonomy

8 Days

Total daily requirement: 600L

Need a system around this storage requirement? Request a backup water quote.

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Finance Estimator

Project Cost (R)

Interest Rate (%)

Term (Months)

Estimated Monthly Payment

R1,173.92

Total Repayment:R28,174.08

Total Interest:R3,174.08

This is an estimate only. Actual rates and terms are subject to credit approval and financier terms. Techne Water partners with leading financiers to offer competitive project funding.

Need help turning this estimate into a real project plan? Send a finance-linked quote request.

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Not sure which route fits best? Send a general quote request and we will guide you.

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