PP – potassium permanganate — Everyone seems to be at ease working with this stuff, but I think it’s kind of scary. Here’s our little adventure…
It makes more sense to PP the entire pond since I don’t want to be catching and dipping koi over the next few days. Our consultant asks “Do you know the formula?” Well of course we don’t because I avoid using the stuff. He kindly does all the math for our 5000 gallon pond and it comes out to 73 grams of PP, treat for 5 hours, neutralize with 16 oz of peroxide tonight and 16 oz tomorrow. He did mention sodium thiosulfate of which there is at least 50 pounds of that stuff at the pond builder’s plant, but that’s not helping us tonight.
The pond builder perused through the files of a Facebook group Koi Keepers of North America and it looks like we’re going to be treating at the 4PPM level.
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