I dropped my iPhone 7 plus into water yesterday and it has a mesh where it makes water not want to go thru but it was not more than 2 ft, it was in the sink. It fell face first which caused pressure and water got into the top speaker. And most likely the bottom one. If apple opens my phone will they know? They say it's splash resistant and water resistant to up to 30 mins under 3 ft. So I don't know if it forced its way in and damaged my phone. No water lines no glitching nothing has happened.
Read more: Is my iPhone 7 water damaged if water got into the speaker?