When my sail gets, um,.. “inverted”, I lay it on a 12x20’ tarp on a sloping driveway and spray-wash it with a detergent spray wand. A big flow-through auto brush works great for lossening dirt.
Small amounts of Shout or another laundry stain remover helps with Dacron sails, and there are a couple fabric rust removers that work incredibly well. You just gotta be patient and real careful around the seams. Even a soft fingernail brush will pull the threads. (Remove or loosen the battens first).
Fold or flip the sail and do the other side. Let it dry there.
If you don’t track dirt on it, the sail comes out perfectly clean. (Avoid trees and power lines - birds love a big bright target like this).
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Prindle 18
96734
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