Look.... no matter what you do I would go back and wash it with Nikwax outerwear wash, then follow that up with the Nikwax DWR stuff. It's important to wash your shit with that stuff anyway. The outerlayer of outerwear is like a bajillion tiny umbrellas. Oils, paint and general dirt fuck up those lil upbrellas and make them inverted, so rather than the water beading off, it just absorbs. And regular detergents destroy those things too. If you can find a non-detergent wash you can use that.