Hi, yes some folks also use a vacuum chamber which also gets the water out from inside the panel.
I've also tried the following to fix corroded logic boards which are otherwise trashed, white vinegar with a very small amount of Lo-Salt (potassium chloride) and hydrogen peroxide which got the corrosion off the two test boards enough to use them again though the connector closest to the battery needed microsoldering.
It also works on dead SD cards after they have gone for a swim.