Well Sir,
Not exactly sure WHY you'd want to clean the area of the toons that rests on the bunks. I mean, no one sees that area and, for the most part, nothing that's deposited on that area while in the water, can survive the weight of the boat while on the bunks and, not to mention that you'd be etching whatever was deposited on them when the boat is either launched or retrieved to and from the trailer. It's yours so, do what you must to satisfy your needs.
You don't say to what extent you want to clean them. Are you talking about just washing them off from a days boating? Or, are you wanting to actually clean, as in ever-so-slightly *etch* the aluminum for a brighter appearance? In the pics below, you see the *Before* and *After* of both *cleaning* and *Polishing* the toons. When we first purchased the Benny, it had only been in the water 5 times. The toons were not too bad in terms of looks and condition. It's a '14 RCL 2550 and, at that time, about 18 months ago, I wanted to have brighter looking toons. So, I picked up some Starbrite product aluminum cleaner. It was a very simple process.
All that was done was put some on a nice soft rag and wipe back and forth, about a 3' swath. You could see the aluminum actually changing colors to a much brighter appearance within about 1 minute of wiping. I did all the toons that way and it took me a whopping 1 hour to do the total job.
But, if you're simply wanting to wash them then a soft brush and some Dawn dish soap will do the trick. That is of course unless they are covered in moss and algae because the boat's been in the water for a long time. Then, a pressure washer might be your answer. Your choice on this one.
Scott.
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