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Calibration solution

Sour Deez

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I know this is probably a dumb question but i got a milwaukee ph 600 meter in the mail . What kind of calibration solution do I buy? I know it has to be 7.0 but what kind and how much does it cost? Can I get it at a aquarium place? TY
 

Sour Deez

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BTW so far in my grow I been using a used ph meter I got from the dude who sold me my fan
 

Bogart Mc Thunderdunk

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i bought some online 250ml for around $5 i doubt it matters what type as all it will be is a liquid with the right ph value to measure against but maybe im wrong. just calibrated mine there.
 

Hamster Lewis

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I bought my 7 and 4 calibration solution from eseasongear.com.
 

Hamster Lewis

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>>>>eseasongear.com/miph7bu3x.html 3 bucks for 3 20ml packs.
 

Sour Deez

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Thank you Hamster and Bogart went to hydroshop and bought genhydro calibration 7 and it worked for the meter
 

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