Republished from BrewingTechniques' November/December 1993.
Correction: Water Treatment Calculations Table Update
A critical factor was omitted from a table of "Cell names and equations for calculations" in the article "Water Treatment: Philosophy, Approach, and Calculations" (BrewingTechniques 1 , 36-39 ). Cells E16-E21 should have added in the ionic concentration from column "C" in Figure 1 of that article. The correct table appears at right.
Also, cell E18 in Figure 1 should read "40.8."
BrewingTechniques regrets the errors and thanks the readers who brought them to our attention.
Cell Names and Equations for Calculations
|F7 ||GAL ||Volume of water needed (in gallons)|
|F8 ||DF ||Dilution factor (range of 0.0-1.0) |
|F16 ||CS ||Calcium sulfate added (in grams) |
|F17 ||CL ||Calcium chloride added (in grams) |
|F18 ||CC ||Calcium carbonate added (in grams) |
|F19 ||MS ||Magnesium sulfate added (in grams) |
|F20 ||NL ||Sodium chloride added (in grams) |
|F21 ||HCL||Hydrochloric acid added (milliliters of 0.1 M)|
|F22 ||HP||Phosphoric acid added (milliliters of 0.1 M)|
|F23 ||HLAC||Lactic acid added (milliliters of 0.1 M)|
|C16 ||=B16*(1-DF); Copy this equation down through C21|