This is just my second season with my first boat(92 seaswirl) and I finally got the rest of the hard water removed from it. I've applied Meguiars premium marine wax to about half of it but still noticed a little oxidation in spots. I picked up some Meguiars marine oxidation remover from a local autobody paint store and asked the sales person if it could be applied over the portion I already waxed or if the wax somehow needed to be removed first. They said as long as it was clean I could just go over it and then reapply the wax. Does anybody know otherwise, the sales person was hesitant at best with their reply. Thanks.