I picked this up at my local farm store. It does not say on the package if it's heat treated. I can't find it on their website. The 800 number for MannaPro sends me to voicemail. Has anyone ever used this brand of DE?
That is not the correct DE. You need the stuff specifically for use in pools.
Please update your location to include City and State/Country (I have no idea where Chrisman is) in your profile as described HERE as it will help us help you in the future.
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