ROI calculator

Run your numbers in 90 seconds.

Enter your site's daily volume, current technology, chemical spend and energy cost. We'll estimate annual savings, payback period and CO₂ reduction from switching to a Blue Quest Purus system. Coefficients are derived from independently validated trials at CS Energy and Evolve Group.

Your site

m³ / day
A$ / month
A$ / kWh
Estimated outcomes

Your numbers, projected.

Annual chemical saving
A$100,800
~70% reduction vs current chemistry spend
Annual energy saving
A$57,400
205,000 kWh / year
Estimated payback period
11 months
vs 3-5 years for conventional retrofit
CO₂-equivalent reduction
169 t / yr
at 0.82 kg CO₂e per kWh (NEM grid avg)
Indicative CAPEX range
A$320k - 480k
for a Purus system sized to your volume

Want a tailored quote?

Submit these numbers to our commercial team and we'll come back with a sized system, indicative CAPEX/OPEX, and (if useful) a Water Challenge proposal — usually within one business day.

See product specs
How we calculated this

Chemical savings: Purus uses approved water-treatment-grade hydrate gel; backwash to drain. Replaces caustic, acid and biocide CIP cycles required by conventional UF and RO. Reduction modelled at ~70% based on independently validated Evolve Group trial data.

Energy savings: Purus operates at 1.8 bar (gravity-class). Combined Purus + RO specific energy is 0.8-1.5 kWh/m³ vs 3-5 kWh/m³ for standalone RO. Calculator applies a conservative midpoint delta of 2.3 kWh/m³ saved.

Payback: Annual savings ÷ indicative CAPEX. Independently observed customer payback at validated trial sites is <12 months. Vertical multipliers reflect chemical and energy intensity: mining and industrial weighted higher; rain harvesting weighted lower.

CAPEX range: Indicative only. Actual sizing depends on raw-water quality, required outlet specification and chosen separation cut-off. Final figure quoted on application after a brief site assessment.

CO₂: Energy savings × 0.82 kg CO₂e/kWh (Australian National Electricity Market grid average, indicative).

Disclaimer: indicative only. Validated coefficients derived from CS Energy Kogan Creek and Evolve Group trials. Actual outcomes depend on site-specific conditions and confirmed during Water Challenge.