I've got a SuperStor Ultra (SS tank, lifetime warranty) and there's a slow leak at the exit point. It happened once before and the installer replaced the tank, but since it was over their one-year warranty, I had to pay for their labor but got a new tank (it came to around $300, if I remember). I'm not sure it was the tank, but it was leak free this time for about 4-years. It's now leaking at exactly the same point. Last time it leaked, I was leaving that afternoon for a vacation, and didn't want to deal with it, so I had them fix it. This time, I'll probably deal with it myself.
It looks like it's leaking from the tank outlet to the reducing T that goes to the T&P valve and the tempering valve on the tank side of the T.
Has anyone had similar problems with a SuperStor? Or, is is just more likely that they didn't tighten the T enough or use a quality pipe dope? The thing needs to be in a specific orientation, and maybe it just needed another turn, or they turned it back to align with the other piping. No evidence of tape. If it isn't the tank, why would it be leak free for several years before leaking? What happens if I take it apart and it is the tank? Will the manufacturer honor the warranty since I'm not a 'pro'? Don't really want to pay another $300+ in labor to have them back, but it would be the simplest solution.
Appreciate any thoughts before I start to tear things apart. It's in the basement, so the slow leak isn't catastrophic, but it needs to be fixed.