Many of us use this preservative, but I just found out that they have two concentration of the product and the bottles are identical. I knew exactly how much to use, and found myself looking at the lable and discovered that on one, for Initial treatment, they recommended 1 oz per 3 gallons on the other 1 oz per 8 gallons.
For follow up one recommended 1 oz per 6 gallons and the other 1 oz per 16 gallons.
Even their web site shows the two concentrations. Make sure you know what concentration you bought.
