O272 cooler drain
Mark, I replumbed my icebox and had the same problem, what to do with the melted water. I got tired of pumping the bilge, as well, so I tee'd the line into the sink drain line. Looking at your picture, you are definitely below the waterline and the icebox will fill with water, as I found out through trial and error. The 272 has no shower or room for the system RAD described, as you know. My solution... I mounted a Shurflo Nautilus 12V/1.0 GPM pump (from an RV dealer for about $35)on the small wall, about where the white line appears in your picture. If I remember correctly, I had to reduce the line to 3/8" in and out of the pump. Got 12V to the pump and mounted a push/pull switch on the cabinet, next to the companionway steps. Then, I put a tee in the sink drain line, just below the drain and ran the pump line to it. I usually don't leave the sink drain thruhull open, but when I need to drain the box, just open the thruhull and pull the switch. Positive flow out the drain and no more slimey bilge. For me, this a was simple and cheap solution. I'd send pictures, but I'm not near the boat today, although you probably get the idea. If you want pictures, let me know and I'll take some.