Cascade has dropped their commercial dishwasher detergent sold by ReStockit and Amazon. Finish still makes one that works but it's very difficult to purchase and quite expensive per load (about 72¢).
I've been looking at homemade alternatives as the retail dishwasher detergents don't work well .
There are a lot of recipes out there. The one that seems to be the most widely acclaimed to work well is this one:
76 ounces Borate Powder (20 Mule Team Borax) (Walmart) 55 ounces Washing Soda (Arm and Hammer) (Walmart) Not baking soda. 1 1/3 TSP cup (Home Depot) Be sure to get the real TSP. 4 ounces Citric Acid (Amazon) Buy in 5 pound bag. 2 cups Vaseline Intensive Care moisturizing beads (Walmart) 64 ounces Canning Salt or Kosher Salt 4 pounds