Bought my first hot tub last year (hot springs jetsetter) and since we leave the north woods for the winter, we winterized it. I was happy to see it was running great when I got home...heating up, jets....etc.....but lo and behold...a slow leak has developed SOMEWHERE......I can't see any water coming out anywhere.....but it is. also, some days it seems to leak more than others....trying to find a pattern. The shell does not have even a hair line crack, so I suspect an internal pipe somewhere...HOW do you go about locating it? Since it is hardwired, you can't really turn it upside down....is it time to call the experts in? anyone ever have something like this??? I have still been using it....just put in about 12 inches of new water every 5 days or so....kind of keeps it nice and clean....ha! any help or suggestions would be appreciated!!!!