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Old 05-20-2013, 06:07 PM   #5
Sweet_Leaf_PDX
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Default Re: Calibration of a Hygrometer...would this work

Quote:
Originally Posted by jjirons69 View Post
Salt test works the best.
I just did the salt test for the first time with my new hydro and it was very easy, just takes time. Plus you can't mess with science
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