You should try salt water
A power wash and "acid bath" at the end of each season is probably a wise desision. The power wash, in my opinion most definitely as a claen bottom always improves boat speed. The "acid bath" is primarily for cosmectic purposes, but if performed opn a regular annual basis, will keep your vessel looking good which I think is important for your overall care of the vessel. However, you may find it possible to do the "acid wash" by yourself, assuming the yard will let you. Further, you do not necessarily have to use "acids" per se to clean off the crud. There are any number of products out there which may do as good as and maybe better job than the acid. There are others here on this web site that can advise you better regarding these products than I. I moor in salt water. Every year about this time, a greenish tinge appears on my haul above the water line. Up to this point I have only waxed this area along with the rest of the hull using one of those heavy scouring pads with some reasonably good automotive National Brand cleaner wax that I purchase at Wal Mart, preferably in liquid form. The scourring pad along with the cleaners in the wax seems to do a pretty good job at cleaning things up and I also then add protection to the boat hull at the same time. Admittedly, I have a faded blue hull which hides the green tinge somewhat making this perticular process reasonably successful for myself. However, as one accomplishes two jobs at once, cleaning and waxing, I think it may be well worth it to try this yourself even with a white haul.
