Home made wet vac.
I was troubled with water collecting under the floorboards of my H23. I’m not sure if it’s being creative or just plain lazy, but I fabricated a mini wet vacuum from a swim toy inflator, a short length of tubing and a 2 litter plastic soft drink bottle. I cut a hole in the soda bottle near the shoulder, stuck in the tubing, and stuck the intake side of the blower into the mouth of the bottle. You have to be kind of careful as there is no full float, and if the tubing gets too close to the intake of the pump it will spray through the pump. This setup has worked very well, for removing water in those hard to reach places. I already had all of the material onboard and it takes so little time to assemble that I usually discard the empty bottle after each use (ashore in the proper recycle container of course).