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Old 08-10-2012, 01:29 AM   #16
Marin
Scraping Paint
 
City: -
Join Date: Oct 2007
Posts: 13,745
Adalaide--- Does your hull get this from just sitting in the water or is it the result of where you've been cruising? We have had the mustache form in the past if we've been cruising in waters with a high tanin content (I think tanin is the right term--- from trees mainly). In our case we remove it with household tub and tile cleaner.

But we've not noticed it form on any boats in our marina including ours from just being in the water. I wonder if the water going through La Conner has a higher content of whatever it is that causes these stains? Perhaps from the grass that borders so much of the length of the channel?
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