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Old 12-07-2019, 06:22 PM   #8 (permalink)
Gerald
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Default Re: GH and KH issues

I've never heard of water like that: 1-2 dGH and >30 dKH. Usually GH and KH are reasonably close, because limestone (the usual natural source) provides both GH and KH in roughly equal amounts. Where are you? What is you local geology?
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