My 222 currently has botom paint on her which was applied by the previous owner. I do not know what kind of paint is on her however the paint is blue and chalky and has a few chips. I have been trailering and sailing her in fresh water for the past few years and now I will be sailing her in salt water this summer. Having never bought or applied bottom paint can someone advise on an economical paint to buy and the best way to apply it.