Hehr frameless window leak

[TheOldMan76]

I'm simply amazed at how much info is available from members of this group!
So here goes the next question. Alumascape 5th wheel narrow window just aft of entrance door. vertical sliding pane w/no frame. glass slides in window frame. Both sides of frame have plastic channel in the track for both the glass & the screen, but they all stop short of the lower curve. Short piece of plastic channel in both centered in the bottom. Nothing seals he glass in the corners or most of the bottom, consequently, rain (or garden hose) against the glass causes the water to gush in. Interior wall below window is completely gone. Any idea what is supposed to seal this window& where to get it? Drains in window frame are open.

[carl.swoyer]

Go to home depot or Lowe's buy 1/4 inch weather seals. Open the windows all the way put the weather seal on the glass start to the top of the glass. Make sure you match the new seal to the same location as the factory seal. This works as I have done it on my 2012 landmark Rushmore