using the silicone spray from the camping section of academy/walmart. Kiwi makes one. I used it on the rain fly to that mamoth tent I posted a pic of a few pages back and it did wonderfully in the downpour. I figure 2 or 3 coats and it should be worth a shot. With the forecast that's being posted. I may have the HH asym that came with my hammock set up as well until i know for sure the homebrew will hold.
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