firstly what paint are you using if its faskolour just run water through when finnished with each colour untill you get a clear spray of water and same with cleaners for the more adhesive paints give the bowl a wipe also with a bit of tissue to give a good clean and if you leave your brush sit for a while i recomend pulling the needle backnot all the way out but just enough so it doesnt clog your nozzle hope this helps
