C25 Draining
I had the same problem on my 1984 C25, but I don’t have a good answer for you. An inch of water didn’t bother me when I was using the icebox and had ice in it, but I liked to keep it dry when I wasn’t using it. Since the sinks and icebox have the same problem, I figured the cause was that the whole galley counter was not level. The cure would be to raise the back or lower the front of the counter. I’m not sure if the icebox would interfere with the panel behind it if this were tried. This was a project I wasn’t willing to tackle, so I just kept a large sponge handy to mop out the water when I was leaving the boat. It always was an irritation. One thing I did do was clean out the backflow valve, which had accumulated a gunky buildup and was impeding flow out of the icebox. I later removed the valve entirely, and then had to remember to close the thru hull when sailing. I usually left the lid half way off between trips, to let the box dry out. I understand your frustration. A lot of little inconveniences and compromises on a boat seem to add up, to make the use of the boat harder than it should be. My current Catalina has a sink that is level, and it drains great. One of my first thoughts when I used this sink was “now how hard was that?”
