The tank i have is a used 180. After cleaning it a bit i noticed that edges have this look to them that looks like some kind of adhesive inside the seam. The tank doesnt leak and is in decent shape but i am kind of worried that this may be a problem. Not sure if you can tell in the picture, but this is the right wall. From the tank side, there are little bubble looking things and from the outside wall side there is almost a super glue-inside of the seam-look. Its hard to explain but this is an old tank and at some point was a very expensive one. I am crazy or this is going to be an issue?
