Soooo, it has been about 30 hours after last keyboard bathing. I plugin it in, and it works almost perfectly. It might be me, but KEY_K is not working at 100%. It is working properly, but not completely. Might want to wash it again sometime.
So here is the guide what to do when your keyboard doesn't work after spilling something else, but water. I didn't test this, but I think keyboard wouldn't be trashed if you plugged it in soaking wet. It wouldn't work, but after you've dried it, it would probably work again.Do this to prevent your keyboard from being bathed. It will take few or more days before it will be working again.
So, first you should think about whether your keyboard has high or low keys. My keyboard has these flat keys, and any liquid can easily get inside the keyboard. You should pop off some key. If you have never done that, try popping out the key you never use, in case you break it. You probably have membrane keyboard, so I will assume you have it. Pop out the key. You will see a membrane(a rubber of some sort, white, kinda transparent.). The problem with spilling liquids on the keyboard such as coffee, milk, beer, lemonade etc is that after they dry, they will leave sugar or something like that afterwards. That is what causes your keyboard to malfunction after it is dry. Your keyboard has this circuit board. That white membrane is in direct contact with that circuit board. Now think. If you spill the liquid on the keyboard, can that liquid run down where membrane is placed in? It might be that liquid can't even get to the circuit board, in which case, you don't really have to do anything, unless your keyboard is sticky. Just clean it with water or something.
If you think that liquid can "run down there", after the spill, you should FLIP the keyboard, keys facing down, so the liquid doesn't run down on the circuit board. You should try to clean as much liquid as possible on FLIPPED keyboard and shake it so as much liquid gets out as possible.
After your keys are done cleaning, you should just use that keyboard again. If it is malfunctioning, don't despair yet. Liquid probably got inside the keyboard, on the circuit board. All the things above where to prevent this from happening. Nothing is lost though.. Now what you need to do is fill your bath tub (Or some kind of bowl) with hot water. The water shouldn't be so hot that it melts plastic ofcourse. Hottest water from tap shouldn't be too hot. You need to completely submerge the keyboard into water. Leave it for 1 hour or something. After that, give the keyboard a good shake a few times and leave it for drying.
I put my keyboard radiator (it's winter and cold where I live) and just let it dry. How long you should keep drying it depends on your climate/how you dry it. After 24 hours you can try plugging it in and see if it works. If it doesn't, just leave it for drying some more. After 12 or 24 hours check again. You can check as many times as you want
After all the water has evaporated, your keyboard should be working again.
If it doesn't you haven't lost anything, because your keyboard wasn't working to begin with.