Replying to Rewaterproofing things?
Alright, I was wondering whether it's a bad idea to spray waterproofing spray on things that supposedly have a DWR coating on them. I have a patagonia backpack that does, and I suppose i'd consider doing my columbia coat that I ski in (omg it's not saga). Is it possible that I may make waterproofing worse by spraying something else on there?
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