Water in the yak

[Anthony179]

I have a Hobie Sport and everytime I go out, I get water inside. I'm out in the water for about 6-8 hours. I guess it's less than a half gallon. It doesn't make that much difference in weight when I load it up on my truck. I've checked were the drive goes and the bottom of the yak. I can't see anything. Has anybody had this problem with a Hobie? Thanks.