I have a 1999 Mastercraft 230 VRS Maristar with the LT-1, and 630-V Hurth transmission. I bought it last fall and changed out all the fluids with synthetics. I've been running it quite a bit this season, and everything has been great. This past weekend I noticed that the tranny wasn't engaging reverse before the throttle started increasing. I figured that the tranny cable needed a little adjustment. I took a look today, and adjusted the cable, and figured while I had it all opened up, I would do another fluid change (Mobil One ATF) on the tranny. When I opened the filter lid, I was surprised to see my fluid looking like strawberry milk! How do you think the water got in the tranny? We did have some hard rains over the weekend and the bilge was pretty full in the morning ( I had it docked on the lake ) until I pumped it out. Is there a vent, a seal, or somewhere the water could have gotten in, or might it be the tranny cooler? I did winterize it last fall, and it was in heated storage, but do those coolers sometimes just fail? I have 498 hours on the boat. Any advice would be appreciated!