MacBook Pro won't start after water damage

My son spilled a full cup of water on my MacBook Pro-( I am not a Mac certified technician) I learned something a few years ago with iPhones that had worked every time I or one of my kids had dropped our phones in water..my system admin( old school tech guy) threw a coworkers phone in a bowl with rubbing alcohol after she'd dropped it in the toilet. He then blew in out with compressed air and it worked. I've used the trick 3 times personally and it always worked. When my son spilled water in my Mac I poured alcohol into the vents and let it run threw. Next I took the screws out of the bottom disconnected the battery and tore it down all the way to the trackpad. I did have to replace my keyboard ( I had 2 keys that kept repeating) then I looked for water damage. Can be greenish or white discoloration around the solder. I found two capacitors that looked damaged so I tested them with a volt meter. 1 good one bad-I found a match on my old mac book-stole it from that and soldered it on my board. I had a damaged trace on the little board that the battery was connected to..I scratched it off with a little razor knife until I could see a little bit of shiny on each end and took a little piece of wire and soldered it down to complete the connection. Works perfectly :)