1. Stage · 5 µm · pre-filter
Mechanical filtration
Sediment, sand, rust and suspended solids are caught by the pleated filter layer. Anything larger than 5 µm stops here.
Information · Know-how
The basic principle of reverse osmosis.
Water treatment is not as complicated as an industrial filtration plant. Anyone can build a reverse osmosis water filter. Here is our “secret” recipe.
2. Stage · Adsorption · activated carbon
Chemical reduction
Activated carbon binds chlorine, chloramines, pesticide residues, odour and taste compounds on its huge inner surface. One gram equals roughly 1,000 m².
3. Stage · 0.0001 µm · membrane
Molecular filtration
The reverse osmosis membrane lets only water molecules through. Dissolved salts, heavy metals, nitrate and pharmaceutical residues are rejected and carried off with the concentrate.
4. Stage · Minerals · taste
Refinement
Mineral granulate gives the pure water back its calcium, magnesium and trace elements; a final activated carbon stage rounds off the taste.
Questions about the principle?
We answer the most common ones in the FAQ, the rest gladly in person.