▶️ Municipal pools cost municipalities an average of 600,000 euros per year. Some municipalities have taken up the issue head-on and have found ways to significantly reduce the bills. In Forbach (Moselle), instead of the sand filter used in the majority of swimming pools in France, the filtration device has been completely redesigned using pearlite, a 100% natural ground volcanic rock. The aim is to filter better to pay less. (Social issues).
▶️ Municipal pools cost municipalities an average of 600,000 euros per year. Some municipalities have taken up the issue head-on and have found ways to significantly reduce the bills. In Forbach (Moselle), instead of the sand filter used in the majority of swimming pools in France, the filtration device has been completely redesigned using pearlite, a 100% natural ground volcanic rock. The aim is to filter better to pay less. (Social issues).