Today I was out on my seadoo with my friends when one of them hit me by accident. It seemed fine, there was no visible damage at all. We tied our seadoos to a dock and went inside for about an hour. When we came back out my seadoo was sinking. We quickly got it back to a lift. We looked underneath it and couldn't find any hole or dents. What we suspected was that a plug cap was knocked off, as only one of the pipes had a cap on it. But after searching around the internet for awhile I saw that only one of the pipes should be covered. Is this true?, and if so do you have any idea as to what is making my seadoo take on water?