Quote:
Originally Posted by gettysburgfreak
do a search for the salt test to check the accuracy of your hydro. Basically throw some salt in a bottle cap, add a small amount of distilled water, mix into a thick paste and place in a sealed bag with your hydro. Leave for a day or two. Hydro should read 75% if it was dead accurate. Calculate +/- and you will know how off it is.
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I have a Caliber III that comes pre-set I believe. I guess I can do a salt test to see if it's off a bit. Thanks.