I always had trouble keeping my site on while on vacations to the beach and to waterparks! But! We finally found a solution: Tegaderm!
Tegaderm is a clear, waterproof bandage that fits perfectly over the site. All you have to do is cut a small slit in the plastic, just large enough to click the tubing back to it... and PRESTO!! Works like a charm!! : )
Hope this helps those having the same issues!!! Happy Summer : )