The sound was recorded in the course of aerating the sand filter. Water from the settling tank where most suspended matter was removed, goes into the...

The sound was recorded in the course of rinsing the sand filter bed. The recording was made at the Rudawa Water Treatment Plant, which is part of Krakow...

After aeration and rinsing of the filter, the impurities and the backwash go into the pipes and then into the desludger. The recording includes the sound...

The sounds recorded at the completion of the aeration and rinsing process of the filter bed in the sand filter building. The filtered water is then pumped...

Sounds recorded as the water goes through carbon filters. Filtration on a bed with active carbon improves the colour and taste of water, and also removes...