The calf care person spots a calf with scours. Lots of loose manure in her pen.
What to do? Aha! Feed electrolyte to her. At her next milk/milk replacer feeding dump in the electrolyte powder and presto! All done!
What is wrong with this description? "All done" is the big mistake here. Set aside your concern whether or not the electrolyte is formulated to be fed with milk. There is no effort to get the calf to drink extra fluids. In addition, by adding an additional three to four ounces of powder the dry matter concentration was being pushed up well above "normal" for either milk or milk replacer.