Logitech g15 gaming keyboard....good for the garbage ?  

I bought my g15 over a year ago, and I absolutely love it. Unfortunately, one day when I was out, my kittens knocked over a glass of water that was on my desk, and the keyboard got wet. I hadn't noticed it till I came home, and by that time the keyboard was bone dry BUT now, whenever I try to use the keyboard, certain buttons add extra characters when I try to type. (for example, my 6 on the number pad adds a , and my , button adds a 6, as well as when I type a 3 it comes out as 3k8 and so on.

What I'm wondering now is, should I keep it and find a way to fix it (i only spent 30$ on my keyboard because of a store credit i had), or should I just toss the keyboard ?

The majority of the buttons do as they are supposed to do, but its certain buttons, including buttons that I need to use for my log in passwords that mess up.

Any suggestions ? Or does anyone know how I can possibly fix the problem myself ?

(as I said this was purchased over a year ago, so the warranty is finished now)