I purchased 2 of the exact same. The problem I'm having is the one is mine and one is my fiances. The one I use hits just fine we use ours exactly the same keeping the juice always full just about. The thing I need help with is there is no adjuster it just hits the same way every time. His seems to be that you have to hit it harder like its clogged some where and his coils are burning out every 3-5 days. Which seem crazy to us being that we have had them for a month and only changed mine 2 times now. He has changed it about 10 to 15 times. Can anyone please tell me maybe why his hits harder and burns out faster?