Hi
If water remains in the speaker on your Apple Watch Series 2 or Series 3 after engaging and then turning off Water Lock, then it may help to repeat the process by manually enabling and turning off Water Lock at least once more:
About Apple Watch water resistance - Apple Support
Note that other models of Apple Watch should not be submerged in water.
If the speaker remains muffled after multiple uses of Water Lock, then I suggest that you contact Apple Support (mail-in service may be available, if required), make a Genius Bar reservation or visit an Apple Authorised Service Provider for advice and assistance:
Note also that:
- Apple specifically advises against exposing Apple Watch to soap or soapy water - such as when showering or bathing - or to high velocity water.
- Apple advises against subjecting Apple Watch to dramatic changes in temperature and/or humidity.
- Apple Watch should be kept within the recommended ambient temperature ranges.
More information:
About Apple Watch water resistance - Apple Support
Important handling information
Keep Apple Watch within acceptable operating temperatures - Apple Support