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How Propelair benefits off-grid sites

Metric: Water per flush
Before: 6 litres per flush
After: 1.5 litres per flush
Improvement: 75% reduction per flush
Metric: Annual water use
Before: ~114,000 litres per year
After: ~28,590 litres per year
Improvement: 85,410 litres saved annually (75%)
Metric: Costs
Before: Weekly tank emptying and higher water bills
After: £14,400 tanking savings + £278 water savings per year
Improvement: Over £14,600 saved annually, 0.3-year payback
Metric: Carbon
Before: Higher emissions from water use and frequent tanking
After: 89.85 kg CO₂e per year
Improvement: Reduced carbon footprint plus fewer tanker journeys

The installation of two Propelair toilets delivered a 75% reduction in water use, cutting flush volumes from 6 litres to just 1.5 litres per flush. Annual toilet water consumption dropped from approximately 114,000 litres to 28,590 litres, saving 85,410 litres of water per year. This dramatic reduction significantly eased cesspit demand and improved off-grid site resilience.

The off-grid installation delivered substantial financial benefits, saving £14,400 annually in tank emptying costs and a further £278 per year in water bills. Reduced servicing frequency lowered maintenance disruption and operating effort. With combined savings exceeding £14,600 per year, the investment achieved a rapid payback of just 0.3 years (four months),

The Propelair installation delivered clear environmental benefits, reducing annual water use by 85,410 litres and cutting carbon emissions by 89.85 kg CO₂e per year, with further reductions from fewer tank vehicles on the road. These outcomes support corporate sustainability and ESG objectives by demonstrating practical, measurable reductions in resource consumption and operational emissions at off-grid sites.

Faster maintenance response through automatic block detection and IoT alerts
Reduced downtime and fewer emergency callouts
Improved hygiene with up to 95% reduction in airborne germs and 99.9% removal of waterborne contaminants
More reliable, one-flush waste removal for staff and customers
Reduced odours due to ‘close-to-flush’ technology
Retrofittable technology suitable for existing off grid infrastructure
Improved site cleanliness and user experience in high-traffic environments