One thing about electronics, circuit boards etc., is that, except for distilled water, common water sources have impurities that allow the water to conduct electricity. This can short things out as the conductive water quickly causes electrolysis and/or galvanic corrosion between components with varying voltage potentials. If an electronic device is submerged, it is important to rinse with distilled water and then dry it out (we are talking cell phones etc. here, but same happens on larger equipment of course).
Remove power as soon as possible. On small battery powered stuff, cell phones etc. that show evidence of water intrusion, remove the battery asap. Rinse well with distilled water - may seem counter productive, but the distilled water rinses away the impurities that conduct electricity between circuit board traces and wiring connections etc. Open the device and dry out.
The only protection our machines have for electronics are seals on wiring connections and components. In practice, these are not always perfect and water intrusion can occur. You obviously can't dunk your sxs in a tank of distilled water to clean it, so you have choices. Don't make like a submarine, or do and then fix things as required.
