Brown bacon and sausage over medium high heat. While cooking, break up into small pieces. Add onion and garlic once meat is mostly cooked, and allow flavors to blend. Add meat mixture to crockpot once cooked. Add potatoes, chicken stock and water to slow cooker. Let cook on low for 3-4 hours. Add chopped kale, heavy cream, salt and pepper. Let cook an additional 1-2 hours and then turn down to warm to serve.