Wash in water proofing is inferior in every way to spray on. Wash garment in tech wash, really not necessary but whatever, rinse twice, then spray on waterproofing. Either iron or throw in dryer.
I've been a long time user and advocate of Atsko Sports wash as well as their Extreme Water Guard DWR. The other problem with some detergents and their use of UV brighteners that make color threads more vibrant. The UV brighteners make you more visible in the ultra violet spectrum which is where a lot of animals have better reception than humans. Atsko also has a UV Killer spray for that. Just find a good black light and inspect all your hunting and camping gear.Yep, no detergents or surfactants. Atsko sport wash is a cheaper alternative as well as pure soap. Key is to rinse twice.
Took the advice of the brain trust here and ordered some spray on DWR as well.
How often do you guys wash and re-apply DWR? Once a season?