It's just a 2 inch section that you have to pry up to get into but water finds it's way in each time it rains. I just need some waterproof adhesive and a syringe I guess. Any recommendations ?!

 

https://www.google.com/url?sa=t&rct=...74115972,d.eXY

 

Any idea how I could get it to stray directly into that little slot?

 

I would tape of the area to prevent over spray, then I would use something to lift the opening to spray where it is separated, then I would lay something flat on top till it dries. I hope it stays sealed for you long after you put the top up and down.

 

If you can get your hands on 2 powerful magnets, that should do nicely to hold the seam together while the adhesive sets up.
( or multiple magnets )

 

Where could I find some of those?

 

a couple of sets of these should do :

( that's magnet to magnet )

Another suggestion : move to California, I hear that it no longer rains there ........