A few years ago my Skagit Skimaster hardtop was badly damaged by sulphuric acid that spilled from an overturned battery. The battery was in a plastic Attwood battery box, but the box was not fastened to the floor. I normally clear the boat out of everything upon storing it, but I forgot about the battery this one time. Upon storing the boat, somehow the battery rolled over and the electrolyte drained onto the floor, eating the fiberglass floor covering, and badly damaging parts of the floor plywood.
I did not discover this until I uncovered the boat many weeks later. I removed the now then drained battery, and flushed the boat out with water & many boxes of baking soda. I spent quite a bit of time beating myself up over this, but the boat didn't appear to have been damaged, except for some minor bleaching of the floor gelcoat. This was a well preserved, all original boat, mind, you.
Last fall, the gelcoat on the floor started to to sluff off like dandruff. To my dismay, discovered that the battery acid had completely oxidized portions of the fiberglass on the flooring, turning the glass fibers into powder. Underneath the fiberglass skin, The acid ruined parts of the plywood flooring too. I was extremely bummed. I don't have much time to work on my own stuff right now, but was faced with the fact; repair it, or sell it for peanuts.
Being a complete sucker for a project (like I need anymore of them) I started removing the remaining fiberglass on the floor. It easily came off in sheets & I soon realized that if I wanted to do the job correctly, the hull would have to be split.
I bit the bullet & started to remove all of the hardware necessary to get the job going. Supporting the seperated deck of any boat is extremely important, and is never easy. In previous boat deck removals, I have used lateral deck supports by slipping 2X4 studs between the deck and the hull. These extend out the sides beyond the rim of the deck. Thes provide lift points for people to assist with the deck removal. This time I had a better and more simple idea. I got two 20 foot green DF 2X4s, and with the help of just one person, slipped them between the hull and the deck. We then carefully pulled the ends of the lumber inward to bend them to the contour of the deck. Green 20ft 2X4 bend very easily. Cross braces were screwed to the ends of the lumber to maintain the shape & to provide a stable lift point. This method was very effective in keeping the deck of the boat supported and flat, and it also allows four people to easily and safely remove the deck from the boat. The deck will be removed this weekend, and the ends of the frame will be placed on sawhorses. I'll place a 2X4 leg at the mid points of the long pieces to keep them from sagging in the middle. This is the 1st time I've done a support like this, and it is by far the most simple and effective way of getting the job done. Hindsight is 20/20.
So, here are the latest pictures, with a couple old ones tossed in first - so people can get a perspective on how the boat once looked. I'll try to document all the phases of repair with pictures and commentary, though this will hopefully be the longest rambling entry.
Bruce