Final step of reclaiming the black water holding tank of tool box storage consisted of several coats of bilgekote; a very thick paint. This did a good job of sealing the hold surface after sanding, and removed any remaining waste odor. It worked so well here, that I continued to paint all of the hold storage compartments and the entire bilge. A mask was key! At one point I think I came very close to passing out while upside down in the hold, breathing in those fumes!
And just for fun, a few gratuitous boat / tool chaos pictures! I’m grateful that we decided to rent an Airbnb instead of trying to live on the boat during these initial project stages. It gave us a place to escape to every evening to shower, eat, sleep and then start all over again the next day. PLUS, we had internet access to research all of our questions about the next step in each project.