4 cups HOT water to dissolve the ingredients, then fill the container the rest of the way with cold water. The ingredients do tend to settle at the bottom between uses, but I just give the bottle a good shake before adding it to the washer.
The ingredients in this recipe are a little more than double the amount from the original. Combined with 30% less water I decided 1/4 cup per large load of clothes should be sufficient.
Over the last few days I have done probably half a dozen loads of clothes using this mixture and have been, once again, completely satisfied with the results. Since this liquid version doesn’t contain the oxygen bleach component that my DRY version does, I add some of that to my white loads.
Just another option in our fight against dirty laundry! :-)