My son found a simple recipe: Take a typical spray bottle, add 1/4 cup vinegar, two tablespoons of dawn, fill with water and mix. This takes all the river slime off the boat, cleans the motor cowl and mid-section (to remove that white residue), etc. Leaves zero spots. We spray and wipe after each trip out. Less than 10 minutes. Boat stays totally clean unless it rains on us on the way home, where we get to do it a second time to remove road grime after rinsing with hose.Price of this stuff is cheap also. 2008 Pantera Classic2014 Mercury Pro XS 200
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