No water is necessary. Wash the meat and put it in the crock. Season it with just about anything other than ketchup. I know…...if you like ketchup go ahead. I can’t even imagine. You don’t need to add water. If the ribs are tough (I’ve never ever had beef ribs), you might want to do them in the oven. Halfway cover with vinegar, cover, and bake for about 1.5 hour. Turn and bake another hour. Take out and put in a fresh pan, season with bbq sauce and bake uncovered for 30–45 minutes. Good luck
That is how I do pork ribs in the oven…..I’m assuming it would work for beef.