10-20-2008, 07:32 AM
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Yes, RO/DI filtration is also essential to controlling undesirable algae. I'm not sure how I missed that in my initial reply. RO/DI needs to be stored in a food safe container. Most folks use a Rubbermaid Brute trash can. Very few trash cans are food safe, and this is important as RO/DI water is so pure that it will actually draw out impurities in other types of plastic.
Originally Posted by SKAustin
RO stands for Reverse Osmosis. This is the 4th stage in the 5 stage RO/DI process, wherein the water is forced to pass through a special membrane. This membrane allows only the water molecules to permeate through.
DI stands for De-Ionization. This is the 5th (and final) stage in the 5 stage RO/DI. In this stage, the water is passed through a resin that converts any remaining ions in the water to the Hydrogen ion.
There are, on occasion, additional stages beyond the standard 5 stage.
Here are the stages
1. 5 micron sediment filter
2. Granulated carbon
3. 5 micron cocunut carbon filter
4. Reverse Osmosis Membrane
5. De-Ionization Resin
6. Second De-Ionization Resin
7. In-line granulated carbon (for drinking water)