01-05-2009, 11:38 PM
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Originally Posted by wake49
I use the Wal-Mart Drinking water (green cap), which is Reverse Osmosis distilled, as opposed to their Distilled water (purple cap) which is Steam distilled. I have no problems, but have not tested it for trace minerals...
Steve, what test kit would I use for that?
A TDS (Total Dissolved Solids) meter would probably be the best choice for testing the R/O, but that wont give you any clue as to exactly what is in there. Just for the peace of mind, you should also run a preliminary check for the basics on it; ammonia, nitrate, phosphate, and copper. You should definately check for copper in distilled water as some distilling processes employ the use of copper piping.