A company with 100 employees can save about 300 m3 of fresh water per year by using water-saving WC pans (6 litre volume) and a two-volume flush cistern instead of WC pans with a flushing-water volume of 9 litres.

This leads to a reduction of fresh water consumption by about 40 %. The savings are based on the assumption that each employee uses the toilet 2.5 times a day. Depending on the costs for fresh water and sewage, the cost savings range from € 1 000 to € 2 000 per year.