Spilled some diet Pepsi on my keyboard last night. Just. Horror. The Corsair R90 my wife got me for Christmas last year. THIS IS WHY I CAN’T HAVE NICE THINGS.
Thankfully, I unplugged it immediately from USB and brought it up to sink where I sprayed it down with water (I didn’t leave it under the tap or anything, I used the hose thingy) and then I used canned air and a dry cloth to dry it up, then I used a hair dryer.
I plugged it back in and things seemed fine. The lights were still working, every key worked, nothing felt sticky or “off”. Then the 5555555555555 dammit. Just kidding. The 5 kept being input, despite the key not actually being depressed (I was the one that was depressed). Both 5 keys seemed fine. I rebooted. Big mistake. Had a helluva time logging in. :)
I pulled out the canned air and sprayed and found it was still a little wet, so I tried the 5 keys and plugged it in, now the space bar was behaving the same way. Canned air again, and THEN everything seemed okay. I unplugged it and let it sit another hour or so, and it seemed fine and continues to behave normally, so yay for the resilience of mechanical keyboards!