diff -r 08635b028dcf -r 5099df8ba6c6 src/EditRecipeTab7.cpp
--- a/src/EditRecipeTab7.cpp	Thu Apr 14 21:54:37 2022 +0200
+++ b/src/EditRecipeTab7.cpp	Thu Apr 14 22:47:05 2022 +0200
@@ -29,15 +29,6 @@
 }
 
 
-double EditRecipe::mix(double v1, double v2, double c1, double c2)
-{
-    if ((v1 + v2) > 0) {
-	return ((v1 * c1) + (v2 * c2)) / (v1 + v2);
-    }
-    return 0;
-}
-
-
 void EditRecipe::calcWater()
 {
     double liters = 0;
@@ -57,12 +48,12 @@
      */
     if (recipe->w2_name != "") {
 	liters = recipe->w1_amount + recipe->w2_amount;
-	calcium = mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_calcium, recipe->w2_calcium);
-	magnesium = mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_magnesium, recipe->w2_magnesium);
-	sodium = mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_sodium, recipe->w2_sodium);
-	chloride = mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_chloride, recipe->w2_chloride);
-	sulfate = mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_sulfate, recipe->w2_sulfate);
-	total_alkalinity = mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_total_alkalinity, recipe->w2_total_alkalinity);
+	calcium = Utils::mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_calcium, recipe->w2_calcium);
+	magnesium = Utils::mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_magnesium, recipe->w2_magnesium);
+	sodium = Utils::mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_sodium, recipe->w2_sodium);
+	chloride = Utils::mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_chloride, recipe->w2_chloride);
+	sulfate = Utils::mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_sulfate, recipe->w2_sulfate);
+	total_alkalinity = Utils::mix(recipe->w1_amount, recipe->w2_amount, recipe->w1_total_alkalinity, recipe->w2_total_alkalinity);
 	ph = -log10(((pow(10, -recipe->w1_ph) * recipe->w1_amount) + (pow(10, -recipe->w2_ph) * recipe->w2_amount)) / liters);
     } else {
 	liters = recipe->w1_amount;