Foam Calculation for Class A Foams **For most applications, .5% of Class A foam mixture will be ideal for the Burner CAFS 60 system. This is equal to 1 gallon of Class A foam concentrate Formula to mix at alternative percentages: 1 gallon = 128 ounces: Base for calculations % = Percentage of concentrate to water per type of foam being used. V = Volume of water in the CAFS stored energy vessel. A = Amount of concentrate to add to water. 128 x (%) x V = A Example: For a .5% solution of foam in the 60 gallon vessel. 128 x .005 x 60 = 40 Ounces 40 ounces of class A foam concentrate added to water in vessel = .5% solution

Foam Volume (Burner CAFS 60)

0.5% 40 oz. 1% 80 oz. 3% 230 oz. 6% 456 oz.

**If utilizing Blizzard Freeze Proof Foam, DO NOT MIX WITH WATER. This foam is pre-mixed, therefore 60 gallons of Blizzard foam must be used to fill the stem. Adding water to this mixture will degrade the foam and its freeze-proof features.