We supply every layer of a granular water filter, from hydro anthracite at the top to support gravel at the bottom, for municipal water works, mines, industrial plants and pools across South Africa and SADC.
Filter media we supply
| Media | Grades | Main use |
|---|---|---|
| Hydro anthracite | 1 – 1.7 mm, 1.2 – 2.4 mm | Top layer of dual and multimedia filters |
| Filter silica sand | 0.6 – 1.2 mm to 3 – 5 mm | Main filtration layer, single or dual media |
| Support gravel | 3 – 5 mm to 13 mm and coarser | Underdrain support layers |
| Garnet filter media | 30/40, 20/40, 12/20, 8/12 mesh | Dense polishing layer in multimedia and SX filters |
| Pool filter sand | 0.6 – 1.2 mm, 0.8 – 1.4 mm, 1 mm | Residential and commercial pool sand filters |
| Activated carbon | 8 x 30, 12 x 40 mesh GAC | Chlorine, taste, odour and organics removal |
Choose media by application
| Application | Typical bed |
|---|---|
| Municipal drinking water (rapid gravity) | Anthracite over silica sand over gravel |
| Industrial pressure filters | Anthracite, sand, garnet and gravel (multimedia) |
| Mining process water and SX | Anthracite and garnet dual media |
| Borehole and irrigation water | Graded silica sand over gravel |
| Swimming pools | 0.6 – 1.2 mm pool filter sand |
Typical dual-media filter bed
| Layer | Media | Typical depth |
|---|---|---|
| Top | Hydro anthracite 1.2 – 2.4 mm | 300 – 500 mm |
| Middle | Filter sand 0.6 – 1.2 mm | 300 – 600 mm |
| Support | Graded gravel, 2 – 4 layers | 75 – 150 mm per layer |
Depths are typical starting points. Your filter designer’s or OEM’s specification always takes priority.
Supplied to your specification
We grade to the effective size (ES) and uniformity coefficient (UC) in your tender or OEM specification, and supply a certificate of analysis per batch. Common reference standards in tenders are AWWA B100 for granular filter media and EN 12904 / EN 12909 for silica sand and anthracite.
Packaging and delivery
- 40 kg and 50 kg bags for pools and small filters
- 1-ton bulk bags for plant change-outs
- Delivery from Johannesburg and Cape Town, nationwide freight, and export to Botswana, Namibia, Zambia, the DRC and Mozambique
Frequently asked questions
Can you supply a complete filter change-out?
Yes. Send the filter dimensions or drawing and we will quote every layer, bagged and labelled per layer for installation.
How often should filter media be replaced?
Municipal and industrial anthracite and sand beds typically last 5 – 10 years depending on load and backwash practice. Pool filter sand is replaced every 3 – 5 years.
Do you deliver to site?
Yes, to water works, mines and plant sites across South Africa, with export documentation for SADC.