A pressure test revealed 2 leaks in an end rib leading edge area and one leak on the opposite side aft lower corner. The leaks were eliminated by mixing some proseal then thining it with MPK. I then used a shop vacuum to create a negative pressure in the tank. The aft corner leak and one of the leading edge leaks gave clear indicatiions of proseal being pulled through the leak into the tank. the smallest leak no indication. The smallest leak may have been resolved using the locktite method.
