Manganese Dioxide
| For iron and manganese removal from potable water. Generally used in admixture with sand, iron and manganese removal is achieved simultaneously during filtration. |  |
Filtration Garnet
| Used either alone or in multimedia filters in conjunction with sand and anthracite. Allows the removal of fine particulates which may not be retained by sand filters. |  |
Support Garnet
| Used as a support beneath filtration garnet to prevent migration through the support layers and to ensure the stability of the bed. |  |
Filtration Anthracite
| Used in multi-media, anthracite, sand, garnet filters or in dual media sand, anthracite filters. The addition of a layer of anthracite to a sand filter increases filter run times. Anthracite is available in various grades including support grades for 100% anthracite filters. |  |
Filtration Sand
| The standard filter medium for water treatment. High silica sand is available in several grades for both rapid gravity and slow sand filters. |  |
Support Gravels
| Used beneath the filtration media as a support. Support gravels are available in various grades. |  |
pH Correction Media
| Microcrystalline calcium carbonate and semi-calcined dolomite for pH corrections and re-mineralisation. |  |
Active Carbon
| Coconut shell and coal based carbons for dechlorination, taste and odour removal and organics removal. |  |
Alkali Resistant Media
| A specially produced material which withstands process liquors of pH 12 and above which would dissolve silica sand. |  |
