Water Saving

Water Storage

A logical step in Avis’ conservation journey was towards water conservation, which seemed logical since South Africa is a water scarce country. In 2007, Avis stated to examine their water usage at their car-washing facility and realised that by installing the latest water recycling technology, and tweaking the machines to optimal performance, they could reduce the amount of fresh water used from 200 litres to approximately 20 litres per wash. While clean water has to be used in the ‘final rinse arch’, approximately 130 litres recycled water is used during the ‘pre-soak’ and ‘shampoo’ stages, which is where most of the water is needed.

Avis invested R1.9-million in the introduction of new wash bays and other water saving measures at their Johannesburg, Cape Town and Durban airport vehicle preparation facilities. The facilities grey water is channelled and filtered until it is over 90% clean and then re-pumped back into the system to wash more vehicles.

To boost the water-saving measures, Avis installed underground water reservoirs at three main depots. The reservoir captures the rainwater run-off from the roofs of its main buildings, which is then used to feed into the car washing and water recycling facility. This effectively increases our water savings by another 2 million litres a year. Thus, for as long as it rains in Cape Town and Durban without a break for a number of days, Avis will not require any municipal water supply to wash their cars for quite a few days in the rainy seasons. The Johannesburg facility doesn’t reach this water neutrality goal, but the rain water still has a significant impact on their water usage.

All of these measures result in saving over 80 million litres of water every year.