I started with the recommended ratio of 480-1. After using it at that ratio for about a month, I've decided that it is too watery and not as much color as I'd like. I do get comments on how well it works, though. I'm going to the purple tip that will take my ratio to 240-1 and see how that works. Don't think it will break the bank even though that stuff is expensive! I drew a line on my 5 gallon jugs and think the level maybe moved about 1/8" in a month....