The WP-DC54 waterproof case allows you to take great underwater shots and be worry-free during inclement weather. Dustproof and waterproof up to 130ft (40m).
It is critical that you perform a submersion test before diving. The night before the dive, submerge the empty case in a tank of water. Check for leaks. On the day of the dive, repeat this test with the camera loaded in the case — but just for a moment. Check for leaks again. Only after both tests have been successfully completed is your PowerShot Waterproof Case "dive-ready."
Just as you prepared your case to go into the water before the dive, after the dive you must clean it and prepare it for storage. This post-dive maintenance is essential to preserving the watertight seal on your Waterproof Case.
After each day's dive, remove the camera and soak the case in fresh water and operate all the moving parts. To remove the sand and salt that can accumulate around the inner parts move all the buttons and dials repeatedly — except for the lid buckle. Check for salt in the case's active parts.
If sand has penetrated the case, grasp the case with the buttons pointing downward and vigorously swish it with water. It may be easier to rinse away sand with a steady stream of water.
When you return home from your dive trip, soak the case once again in lukewarm fresh water for an extended period of time. Salt water that penetrates the smaller crevices in the case may only dissolve after a lengthy soaking. Check to make sure that no salt or sand is lodged in the buttons. If sand gets lodged in the buttons, do not use the case again until it is properly serviced at a Canon authorized service center. To ensure that the Waterproof Case remains waterproof, it is recommended to replace the O-ring seal once a year.