I noticed in the CLC Youtube video where a class is building the Jimmy Skiff they didn’t put any type of foam in the side tanks for flotation. The manual says to put in the pink foam board. Is not putting any foam in there an option? What about expanding foam? The pink foam board has gotten kind of expensive where it might be cheaper to use expanding foam.
Continuing the discussion from Jimmy Skiff Side Tank Flotation:
Yes, not putting any foam in there is an option. It’s an option that I exercized on my Rhode Runner build.
Poured-in foam will eventually get waterlogged in a sealed compartment. How? I suspect it is from micro-fractures in the surfaces or joints, caused by and combined with regular expansion/contraction pressure cycling, sucking in moisture.
I think the same thing will happen with an empty sealed compartment, just with the same flotation and less cost.
Take a look at the current post on breather tubes. It shows the pressure relief vents that I’m using. I’m betting on this being the correct solution, but only time will tell.