There are two things I’d planned to write about this winter: the Wahoo!’s above deck drain system and the Wahoo!’s below deck drain system. Both are among the quirkiest aspects of these boats and among most commented on/asked about. They sure had me stumped when I first bought my Wahoo! It’s the third week in February all of a sudden and Spring is just around the corner. So time to get writing before the boating and fishing season take over.

This post will be about the Wahoo!’s above-deck drain system. Specifically it will be about the self-bailing deck drain system employed by most smaller Wahoo!s, whereby water from the deck is designed to exit out of a scupper in the stern. I may not get all the facts complete or correct the first time. So if you are are a Wahoo! owner past or present and have corrections or additional info, please add a comment or send an email. I’ll continue to update this article as necessary.

The self-bailing design concept

Smaller Wahoo!s have a deck draining system that is designed to be self-bailing. The idea is that, when underway, any water that accumulates on the deck, be it from rain, spray, waves over the gunnels, or whatever, is designed to run to the rear of the boat and collect in a small sump basin located just inside the stern. A scupper connects the basin to the outside of the boat. Gravity from the boat’s forward motion forces water from the sump basin through the scupper and out of the boat. (Note that it is only the Wahoo!’s deck only that is designed to be self-bailing, not the hull interior (that is, the bilge).) Continue Reading…