| Bathing facilities circulation systems | Hot springs / Public baths Large-scale public baths Hotels / Inns Resort facilities |
| Pools | Private / Public swimming pools Schools
Swimming schools Sports gyms |
| Drinking water | Water tanks of buildings and apartment blocks
Small-scale water supplies (such as wells) |
| Others | Water for food manufacturing / Industrial water
Water for hospital use
Emergency underground water supply tanks
Fish breeding areas / aquariums / artificial lakes etc. |
| Industrial waste water treatment | |
| Agricultural irrigation | |
Various practical applications for water purification
