My 1982 42 ft Bertram has quite a serious bloom or dull surface, I am hoping you can offer advice as to the best and most efficient way to restore the original luster. It is not scratched or otherwise damaged. A friend suggested I wash it with an acid first, ......is this a good idea?, if so, which acid, and how do I protect the chrome and stainless fittings. I do have various compounds which I have used, with little sucess, I'm hoping that if the surface is cleaned by the acid wash, the compounds will be more effective. Very many thanks, Vir Ipse.