Interesting. Wonder what it is, but it is VERY expensive next to DE. I've been treating my filter for a year and still haven't finished the first 5# bag in a 10# box that cost me $8.
Interesting. Wonder what it is, but it is VERY expensive next to DE. I've been treating my filter for a year and still haven't finished the first 5# bag in a 10# box that cost me $8.
Carl
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