it's important to keep your instrument clean so the valves and slides down and stick equal cleaning from the soapy water this one's been cleaned but there's still quite a lot of corrosion on the slide here which is meaning it's the slide starting to stick and so what we can do is you can use some brazo to clean your slide I've put my bras on an old bottle of Apple to make it easier to use and you can put a little bit of broth on here and then with an old bit of sheet you can just clean it in like that give it a good old clean and then wipe it off with a another clean one that's really important and then you can see it's really started to shine and we've removed a lot of the corrosion the slide now goes in and out much easier