so I had to shut this tank down because it had a tiny slow leak out the back. I ran it for a little bit at 3/4 full until I could rehome the fish in a new tank and the leak stopped. I am getting ready to re seal it with west systems again I just want to make sure I do it right so I don't have to tear this down again because it was a real pita. my plan is to use the west systems epoxy again and because the leak was on the back of the long side I was originally just going to reseal that area but I want to paint the background black, so I'm just going to reseal all the panels with the exception of the window panels and the bottom. I'm only worried about the long back panel because I assume the leak was somewhere in that section although I suppose it could have traveled under the epoxy around a corner too, so doing all the back and side panels should clear that up.
I've swept up as much of the sand as I can I'm a little worried that having grit under the epoxy might create another spot to leak but I'm going to paint the areas I'm resealing anyway, so I think that should smooth anything over enough for the epoxy to adhere correctly.
does anyone see any possible issues or tips for this project?