fishin4cars
True friends just call me Larkin
After rolling the seam, you run a jet of air at a 45 degree angle aprox 1-2" back from the seam on both sides. If the air doesn't lift the edge it's suppose to be a good seal. I actually watched the Video that Firestone has along with a few on youtube and then one from Anjon that they sent. Both had this procedure so I figured it couldn't hurt to do it. Compressed air is a lot cheaper than trying to find a leak after the fact. lol One thing I did find out. Double stick tape goes in the middle, That is the 3" tape when it comes in a kit. 6" tape is single sided. that goes on top. I started off using the wrong tape and ruined the whole roll putting the single sided tape down first. Thankfully Anjon had another kit and over-nighted it to me. That was a $100 goof up! mark that as another lesson learned in the adventure as well.