I am not familiar with your camera, but I have been using UW cameras since 1988 and have owned four different models of them.
WIth UW cameras it isn't a matter of if you flood your camera, it's a matter of when. UW cameras depend upon seals, called o-rings, to keep watertight. If a seal is old and dry, they can leak. If a seal is cut, nicked or has dirt, lint, hair on it, they can leak. If a camera has a poor latch design and is bumped, they can leak. If a camera exceeds the depth for which they were designed, they can leak.
I had a camera that I sent back to the manufacturer 3 times for leaking. Each time they replaced it. Each time they admitted the leak was a manufacturing problem. The third (and last time) the replaced it they informed me they no longer manufactured that camera, and they would not replace it again. The new model in that price range had been redesigned... they had a latch problem.
If there is no guide for this camera - you can create one. . . otherwise I'd recommend you contact Panasonic.
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