Anyone else had their MD tell them specifically that they are not to use Blue Juice on their valves? I'm quoting him directly here - , although Blue Juice themselves advertise it as a non corrosive. It's all I've ever used since I started to play and many people that I know also use it and we've never had any problems with it. A very quick Google search doesn't seem to throw up anything about corrosion, just wondering if anyone had anything to share about it. I'm asking as it appears that it will be written into player contracts soon that we don't use it.