This topic has most likely been covered, but what works best to waterproof your blankets. I tried washing, spraying with Nikwax and heating in the dryer… didn’t work. I am trying to wash with detergent made for horse blankets, and I swear it stripped all waterproofing off of my blankets. I just did two blankets with a tent spray. I hope it works.
What works, I am willing to try anything. My super old Rambo still works, but I need options!