I took my iphone in the pool and now I can't record video with sound?

I have a lifeproof iphone 4/4s phone case for my iphone 4 and the case is waterproof. I went into the pool yesterday and was recording videos and I went to look over them today and I noticed my first few had sound then the later ones did not. I took my case off and noticed the speaker guard was torn (it is a mesh on the inside of the case) but there's still a waterproof seal around the speaker. Is it safe to take my phone in the pool again and how can I fix my video speaker?

Buy a new speaker and install it

Life proof sucks! Don't take it underwater again.a lot of my friends have ruined their phones by using that case.

Uhh i don't know about you speaker (it sounds like your case might have blocked out sound recording because of the seal, but I would try putting just the closed case in water to see if it will keep out water for what you're doing