Joy Key - Water Key

 needs to be replaced. 

automatically drop the water out of your instrument whilst you are playing, allowing you to maintain a constant "Flow State." Placing your instrument in/on an appropriate stand when resting facilitates the process of keeping your instrument water free.

At first you might feel a little like someone who has just given up smoking and is wondering what to do with their restless hands. Within a week or two you'll probably find it hard to remember what it was like to have to pull slides all the time, grab for a water key lever or get upset at having clammed a note or entry because there was water in the lead pipe. You'll quickly learn to value the peace of mind you have to prepare for your next entry.