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12-24-2009, 10:00 PM#1
OPJunior Member
ppm and ph meter
just wondering what i should conversion i should have my meter set at for ppm readings 0.70 or 0.50
scabana Reviewed by scabana on . ppm and ph meter just wondering what i should conversion i should have my meter set at for ppm readings 0.70 or 0.50 Rating: 5
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