FILTER SAND / GRAVEL

Sand and Gravel are the most basic form of turbidity removal, filtering down to a nominal 40-60 micron. Sand and gravel sediment filters are used when the water appears visibly cloudy.

The media works by creating a dense bed for the water to pass though, as water passes the media traps small particles. When the media is backwashed, it will release the trapped particles to drain.

Due to the weight of the filtration media, to lift the bed and get an adequate and suitable backwash, you will need more flow rate for backwashing than service.

All sizes of Gravel and filter sand are available on request.