Do you buy foam soap? Our kids love it. We find that its much easier to get the right amount of foam soap and not be wasteful with the regular soap refills. After we used up the soap in this Method brand dispenser, I wondered about refilling it. I looked on line and figured out that a 3 parts water to one part refill soap is a great ratio. The best part, though, is choosing the color. One drop of food coloring is all it takes! What color are YOU going to make?