- Home
- Companies
- James Cumming & Sons Pty Ltd
- Products
- James-Cumming C & S - Filter Coal
James-Cumming C & S - Filter Coal
Unlike a mono-media sand filter, a dual-media filter incorporates two distinct types of filter media for enhanced water filtration efficiency. This second media is typically anthracite or Filter Coal. At James Cumming & Sons, we’ve identified a select local bituminous coal that not only outperforms imported anthracite coal but also consistently meets or exceeds the AWWA B100 standards.
The filter bed’s structure consists of a support layer for additional stability, often composed of garnet or silica, overlayed by anthracite or Australian Filter Coal.
As water passes through, the support layer provides a structure for the filter media on the top of the bed, while the Filter Coal captures finer particulates and turbidity.
The layered configuration not only enhances filtration quality but also minimises media bed clogging, reducing backwashing frequency.