If you get water in your MacBook's speakers, there are a few things you can do to try to get it out. The first thing you should do is turn off your MacBook and unplug it from the power adapter. Then, open up the MacBook and remove the battery. Once the speakers are dry, use a hairdryer to remove any remaining water. You may also want to use a vacuum cleaner to suck out any water that may be trapped inside. After you've done that, replace the battery and plug in your MacBook. Turn it on and see if the speakers are working correctly. If they're not, you may need to take them to a repair shop to have them fixed.