I am getting ready to bottle a 5 gallon batch of Irish red that is in my secondary. When I transferred from the primary to secondary there was obviously some loss, so now I have more like 4.5 gallons. I was wondering if I could get away with adding some previously boiled water when I add the priming sugar to my bottling bucket. Usually, I would boil a couple cups of water and then dissolve about 5 Oz of priming sugar, cool, add to bottling bucket, and then rack on top. How much extra water can I add when I dissolve the priming sugar? Is there any downside to this?