How to Re-Waterproof a Raincoat | DWR and Seam-Seal Tutorial

My 15-year-old Gore-tex raincoat has lost all of its water repellency and some of its waterproofing ability. I explain and demonstrate the detailed how to of using Nikwax TX Direct Spray-on DWR replenisher and Coghlans Water Based Seam Seal to re-waterproof my raincoat.