Project Description

Propelair is ideal for off grid sites

Many of our clients retrofit the Propelair toilet to meet sustainability goals for water and energy reduction. Other clients specify Propelair into new developments to build more environmentally-friendly buildings. But Propelair is also ideal for off grid sites:

Off grid sites are not connected to main sewage systems, including holiday parks, glamping and camping sites, ships and yachts, and petrol stations.

Because the Propelair toilet uses just 1.5 litres of water per flush, off grid clients need to empty cesspits far less often.
This saves water, reduces your carbon footprint and lowers your tank emptying bills.

Here, we show you how one off grid client saved water and money – and made their site more hygienic for staff and visitors.

Our client is a major oil and gas company with numerous petrol stations across the UK and the world. Following a hugely successful trial at one of their cesspit sites, this globally renowned oil and gas company chose to install more Propelair toilets on other sites.

The reduction in water usage as a result of installing Propelair has not only saved them money on their water bills, but they have also seen huge savings on their tank emptying bills as well: 

To go from emptying once a week, to now once a month is saving the customer £1200 a month. 

To learn more about the Propelair toilet, watch this video.

Picture of suitable offgrid locations for Propelair


Metered Water Charge

Flushes per Day

Previous Flush Volume
6 litres

Annual savings per toilet

42,705  litres

£139.22 from lower water bills

+ lower costs from not having to empty their tanks frequently

Just 4 months


  • The installation of 2 Propelair toilets has achieved a 75% water saving
  • 85,410 litres of water will be saved annually  (building utilisation = 365 days)
  • Annual carbon reduction equivalent to 89.851 kg + less lorries on the road


  • £14,400 will be saved in tankering bills annually
  • £278 will be saved in water bills annually
  • Payback achieved in 0.3 years


  • Propelair’s displaced air technology efficiently removes all waste with one flush
  • Reduces airborne germs by up to 95%
  • Removes up to 99.9% of waterborne contaminants