Thanks Marshall. I'm going to try this. I have a nylon mesh bag (courtesy of nylon pantyhose :-) and will try this before spending any money on line. Seems it takes just a little when dealing with a small area, according to the size packages on line.
Samala, Renee--who doesn't get the chemistry formula, but can follow the more citric, less chlorite (though 30/60 doesn't add up to 100% :-) -------Original Message------- C6H8O7 + NaClO2 = ClO2 + NaC6H5O7 + 3H Thus one would needs to use 2.12 times as much BY WEIGHT of sodium chlorite as citric acid for 100% efficiency. However I would simply put an excess of citric acid, like 30% sodium chlorite and 60% citric acid which works out to be 2.33 to 1.