The logic of these is flawless. Question becomes one of space. Where on a much smaller boat can these be mounted?? Can the be placed "horizontally" or must they be vertical? Is there a limitation on how far from the through hull they can be? Im guessing the farther from the through hull the more chance of that run of tube getting clogged and needing snaking. On my smaller 27' O'day space is at a premium. I could probably mount against the wall by the ice chest but that is a much longer run from the through hull. It's always more complicated than it seems at first glance but doing it correctly is always worth it in the long run.