Contrary to what you might think, water is essentially not harmful to electronics as long as they are not wet and powered at the same time. And if the water were completely devoid of electrolytes you should theoretically be able to power them up even when wet. Of course, that would include no electrolytes produced from the dissolving of conductive substances on the components which is probably going to happen to some degree. Just make sure it's good and dry before you power up. Take a hair drier to it for a good amount of time. Don't put it through a dishwasher cycle or the clothes dryer, however.
