I have an odd issue in my 2003 Mobius maybe someone can help me figure out. When cruising or wakeboarding I have no issue with this BTW. But when surfing I somehow seem to take on water somewhere, no its not something obvious like over the bow or anything spilling into the vents along the rear. But after about 15-20 minutes of surfing I need to run the bilge and it runs for like 20-30 seconds. Where could this be coming from as it only seems to happen when under a big load like surfing?