Technology

Reverse Osmosis (RO)

Semi-permeable membrane filtration that removes dissolved salts, heavy metals and high TDS.

What it removes

Dissolved salts, heavy metals, bacteria and high TDS — up to 99.9% salt removal.

Best for

Source water from 250 to 1250 ppm TDS.

Key advantage

6-stage purification with thin-film composite membrane technology, removing up to 99.9% of dissolved salts.

How It Works

The Reverse Osmosis Process

Pre-Filtration
Sediment and suspended particles removed.
Carbon Filtration
Chlorine, odour and organic impurities reduced.
Reverse Osmosis
Applied pressure forces water through a thin-film composite semi-permeable membrane, retaining dissolved salts and heavy metals.
Post Filtration
Final polish for taste and clarity.
Safe Water Out
Purified, great-tasting water.

In Detail

Overview

How Reverse Osmosis Works

Reverse osmosis is a water purification technology that uses a semi-permeable membrane to remove ions, molecules and larger particles from drinking water. An applied pressure is used to overcome osmotic pressure, forcing water through the membrane while dissolved salts and impurities are retained on the pressurised side.

What It Removes

Reverse osmosis removes a wide range of dissolved and suspended species from water, including bacteria, and is used in both industrial processes and the production of potable water. It is most commonly known for its ability to remove salts and dissolved solids, making it the right choice for source water with high TDS.

Technical details — Crossfields RO systems

Crossfields RO Systems

Purification stages	6-stage purification
Membrane type	Thin-film composite
Membrane capacity	300 GPD / 500 GPD
Dissolved solids removal	Up to 99.9% salt removal
Water recovery rate	30%
Membrane replacement	Varies with input water TDS — contact your nearest branch for a recommendation based on your source water.