Oh yeah one of those new fiberglass ladders, I'm still using my 15 year old aluminum ladder with no cup holders lol.
No, the leak is the same. You didn't understand what I said. I filled the tank on one continual fill instead of stopping along the way to wait for the leak. I figured if it leaked the same way, it wasn't the front seal. If it wouldn't have leaked, then it would have been the front seal that was the cause of the leak.If the leak was delayed this time becasue you did not go as high as the original 27-30" mark but stopped lower in this test. It could mean that a delayed or later leak as you put it could be an indication that it is a progressive problem that is pressure and moment related (widening leak), rather then an acute or single cause vent leak. If it is a widening fault due to pressure a liner may mask or hold back symptoms until its a big surprise.
Just food for thought, NO offense intended.
It self-heals while it's dry not underwater. The problem is that there is a void somewhere that is allowing the coating to balloon out and burst. I have not been able to locate the source.Just curious, it seems like in a lot of the posts I have read that the coating you are using for the tank "self repairs" or something to that extent. Since it is such a small leak have you tried filling the tank up and letting the leak go for a day or two to see if the coating will reseal itself back up?