I have a problem with our 1994 300 Sundancer. Water accumulates in the cavities on the port side of the fresh water holding tank and then leaks down into the lower aft cabin floor area. This problem normally develops as a result of a leak in the area of the hot water heater. The first few years I thought it was because the folks at the marina had not properly sealed the water connections at the heater. Now this spring when getting ready to put it in I found awater in the cavity and the floor wet again most likely a result of the marina draining the H20 heater into the compartment it's in expecting it to go out the bilge area- instead it infiltrates some area in the stringers, goes into these two 10 x 10 compartments and bleeds down to the floor. Has anyone else had this issue and resolved it? I have no idea what else to do. I am thinking about pulling the water heater and plugging or t'ing the hoses some how to circumvent the water heater area to see what happens. The marina we bought the boat from has spent hours on this and our local marina has looked at it, and is looking at it again, but I remain pessimistic that it will be resolved. We always just turn the water on when needed, but if we forget to shut it off the floor is sure to have things floating in the aft cabin. Thanks for any help!