Gene Kearns wrote:
On Mon, 29 Oct 2007 13:03:54 -0400, Reginald P. Smithers III penned
the following well considered thoughts to the readers of rec.boats:

|Chuck Gould wrote:
| On Oct 28, 6:39?pm, "Reginald P. Smithers III"
| wrote:
| Chuck Gould wrote:
| On Oct 27, 10:44?pm, sherwindu wrote:
| After pulling my boat from the Root River in Racine Wisconsin, I noticed that
| there
| was an ugly band of black gunk at the waterline, especially at the upstream side
| of
| the boat when it was in the slip. A power wash got the mud off, but this band
| of
| gunk stayed on. I had the same problem last year, and had to rub like hell with
| all kinds of cleaners to get it off. Someone recommended using Tidy Bowl as a
| cleaner, possibly because it contains Muratic Acid. I know that Muratic Acid is
| used to clean and etch concrete, so I was wary to use it on my fiberglass hull.
| Was I correct about this? Is there a better way to clean off this river junk?
| I
| have used Zud and other similar products, but they don't get everything off and
| require a lot of elbow grease. Some of this gunk is on the bottom paint, as
| well,
| so I have to be careful not to dissolve that.
| Sherwin
| You might try this stuff:
| http://lat43.com/marine.html
| Absolutely non-abrasive, and cleans far better than any thing else I
| have ever used.
| Chuck, have you used this stuff on water line gunk?- Hide quoted text -
|
| - Show quoted text -
|
| If it will take off spider poop, (and it does), water line scum should
| be easy. No, I have not personally used in on waer line gunk.
|
| There's a before and after photo on the web site showing what are
| reported to be the results of spraying a dirty bottomw with water,
| applying the soap, letting it sit a while, and then spraying again. I
| haven't done that either, but based on what I've been able to observe
| above the waterline I don't doubt that they got the results the photos
| illustrate.
|
|
|
|Our spider poop must not be as strong as the NW spider poop, I can just
|hose that off of my boat, even the parts I don't wax.

Boy, I can't..... you can hardly SCRUB that crap off..... even from
things like glazed tile....


Well just another reason why you need to try Zaino Bros. wash.