Fix — unlikely. I tried to fix my poslednyy laptop keyboard, similarly filled with water.
There are two contact layers on top of the rubber membrane beneath each button.
So in my case, these two contact layer was glued securely in several places, and to tear from each other in order to handle-wipe did not work.
Exit — found the keyboard on eBay for $ 15 with free shipping. Changes in 10 minutes. On the back of the laptop has a few screws unscrewed, the keyboard otsenivaet on and off the train.
Also, by the way, ASUS.