Hi Chuck. My 2012 Keystone Outback 30' has 3 sliders. All 3 sliders leak. They leak in the corner and then spread in a triangular form or run down the bottom of the walls almost to where the slider meets the coach. Ive epoxied along the top seams on the outer top parts of the sliders. I cant believe all 7 window seals are leaking. You mentioned the sweeper seal. The seal on the 7' slider is in bad shape. There is no water where the seal meets the coach but can it run down inside the top part of the slider roof and form on the corner and the bottom of the walls? Sorry for the book. Before changing the window seals and White Artic all the seams, I wanted to pick your brain first. Thanks again Chuck. Oh, also, the wardrobe slider has no window and it leaks at the bottom of the whole width of the wall. It was the 1st one I caulked and epoxied but still leaks. Again Sorry and Thanks Chuck. Greg Ice