Landheer WaterinnovatieRainwater harvesting saves drinking water and relieves the sewer. This is how you contribute to a more sustainable future.
Three environmental effects
Rainwater harvesting has three measurable environmental effects: you save drinking water that the water company has to purify and pump, you relieve the sewer system during heavy rainfall (less chance of flooding), and you reduce the pressure on the natural groundwater level because rainwater is used on your own property.
Concrete figures
An average household uses around 120 litres of water per person per day, of which about 40% (toilet, washing machine, garden) can perfectly well be rainwater. For a family of 4, that means 192 litres per day, or around 70,000 litres less drinking water per year.
Water authorities appreciate it
More and more water authorities and municipalities actively support rainwater harvesting — often with subsidies or a discount on the sewage levy. The reason is simple: if many people collect their rainwater, the nuisance during extreme rainfall decreases sharply.