Start with a water test
A laboratory water test tells you what you are treating: dissolved salts (TDS), hardness, iron, turbidity, bacteria and other parameters. Without it, any system is a guess. Borehole water often carries dissolved salts and minerals; river, lake and tank water usually carries more sediment and bacteria.
What each system removes
| System | Mainly removes | Typical role |
|---|---|---|
| Multimedia filtration | Sediment, turbidity, suspended particles | First stage and pre-treatment |
| Ultrafiltration (UF) | Fine particles, turbidity, bacteria | Clean water while keeping minerals; RO pre-treatment |
| Reverse osmosis (RO) | Dissolved salts, minerals, heavy metals, taste and odour | Drinking and process water from salty or hard sources |
| Dosing | Adds controlled chemicals | Antiscalant, disinfection, pH correction |
Common combinations
- Brackish borehole water: borehole pump, multimedia filter, cartridge filter, RO, then disinfection or pH correction.
- River or tank water with bacteria: multimedia filter, ultrafiltration, then disinfection.
- Mains water for process use: often a carbon or multimedia stage followed by RO, depending on the quality you need.
Try our water helper to see a suggested sequence for your problems.
Size it to your demand
Systems are sized by output, in litres per hour or per day. Work out your peak daily use, then allow for storage so the system can run steadily. Our installations range from a 350 LPD unit to a 3,500 LPH RO unit in Antananarivo.
Plan for maintenance
Membranes, cartridges and media wear out. Budget for spare parts and consumables and keep a small stock on site to avoid downtime.
What to send us for a quote
- Your water test report, or a description of the source
- Output you need (litres per hour or per day)
- What the water is used for
- Power supply and space available
- Delivery location and timeline
