I have been experimenting with making fruit wines with and without added chemicals (Campden, pectic enzymes, etc.). After lots of taste testing, I've determined that the late Jack Keller's recipes are the best. With his recipes, he mentions racking multiple times, but they all only start with one gallon of water. So, what and how are you supposed to top off these wines when racking if you only use one gallon of water from the start? Can I simply just add a bit more water and sugar so there is extra for topping off later?