Could that be more vague? I bought a Downy ball, now how do I do this? Do I fill it to the line, or all the way to the top? Do I use distilled white vinegar? Cider vinegar? Basalmic? Rasberry? (OK, so now I'm being a little snarky, but you know what I mean.) Do I put it in when I add the detergent, or when I reset the machine to do the final rinse?