Quote:
Originally Posted by Gene F
Besides, it always rubs me the wrong way paying more per ounce for less concentration / strength.
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This. Why pay more for water?
The floating balls method doesn't 'rise' to much accuracy, the number of balls floating just gives a step indication. There is no in between measurement. Also, let it stabilize for a few minutes, any micro bubbles clinging to a ball will give inaccurate readings.
Did you add any water during the summer?
Maximum protection is obtained somewhere around 70/30, but you don't need that unless you're in Alaska.
I'd say the easiest if you want to keep what you have, is to drain it into a bucket, and add full strength until you get the protection you want. Then top it off if needed with more of the correct ratio. It is a measuring game.