Reverse osmosis is a purification method based on forcing water through a semi-permeable membrane under high pressure. The membrane lets water molecules pass while separating dissolved salts and most unwanted substances.
Purification stages
In home reverse osmosis units, water passes through several filters before and after reaching the membrane:
- Sediment filter: traps larger particles such as sand, rust and dust.
- Carbon filters: help reduce chlorine, odor and taste-affecting substances.
- Reverse osmosis membrane: separates dissolved salts and many unwanted substances.
- Post carbon / mineral-balancing filter: improves taste; mineral-balancing models help retain natural minerals.
Why is it preferred?
Reverse osmosis systems are a common solution for those who want to improve the taste and odor of tap water and reduce dissolved substances in drinking water. In tank models, purified water is kept ready and available the moment you open the tap.
