my getzen si starting to fail on me i've been playing it for quite some time now and every time i play it, it'll start dripping spit out the tunning slide not the spit valve. which is a sign of an air leak so how do i fix it?

Take it to the repair shop.

I don't think it is going to be that much.
Sounds like a loose solder joint.
You do not want to try and fix it yourself.

of course i put sliding grease on it i'm not that dumb lol.and i'll take it to the repair shop and see how much they're offering