I have had to have the cylinder head removed and machined and the valves replaced due to salt water corrosion in my Fischer Panda Mini 12 , that was factory installed by Hunter. It appears that due to the limited space caused by the installation below the floor, the distance for the exhaust water to fall into the water lift muffler upon shutdown is much less then almost 2 feet recommended by FP. Has anyone else experienced this problem? Any ideas to prevent in the future, other than starting generator after every sail?