extra tankage
Nic - I have a 400 that I've wanted to add tankage to. I'm thinking two saddle tanks in the upper part of both cockpit lockers, in the wasted space inside the cockpit coaming. I think the tank could be constructed of plywood with fiberglass/resin on the inside, with a similar lid fastened down onto a gasketed aluminum flange mounted inside the tanks, gravity-fed into the main tank, but so far, I haven't built anything. When I cruised Mexico a few years ago, I used a 27 gal. bladder tank lashed on the deck forward of the traveler with a valved hose that I gravity-fed to the main tank, and four 5-gallon jerry cans in the starboard cockpit locker that I siphoned into the main tank with a bulbed hose. It gave me about 80 gals total, enough to cover the distance from Cabo San Lucas to Turtle Bay, on the Baja peninsula. It was a little cumbersome, but it worked.