When you get that figured out, let me know. I also have a ZX Skeeter and mine does the same thing, only part of the time. I think that I have it isolated it to the livewell drains. Mine is a 96 model and I have the manual drain valves that are located by the console. If I leave them open from my last trip to the lake, I get a lot of water on board. If I remember to shut them, not so much. Let me know if this helps.