Boy that sure is hard to read all bunched up like that.Originally Posted by radkinsYou made a VERY wise decision not to weld on that tank! As for the suggestions to go ahead and weld it I would strongly suggestion that no one heed that ill advised nonsense that could very well get someone killed, a leaking tank is dangerous and ANY welding only makes it worse, never weld a leaking compressor tank! Even if someone manages to "fix" the leaky spot the fact is that if that spot was leaking due to corrosion then it is just the "tip of the iceberg" and the tank is going to fail in another area soon, the next time may very well be catastrophic. Air compressor tanks do not last forever and developing a leak is a sure sign that it has reached the end of it's service life and needs to be replaced not "repaired". When an air tank ruptures instead of just springing a leak it does so with extreme violence that can, and has, caused serious injuries and fatalities. Most people who would recommend to weld a tank leak have no idea just how much damage a ruptured 60 gallon tank with 125 PSI can do and believe me it can do plenty! Welding on a leaking pressure tank is not making a repair it is making a potential bomb. If the leak actually is due to just a pinhole then in such a rare case as that a repair might be attempted but how could a person possibly know for sure? Short of cutting the tank open it would be difficult or impossible to tell if the leak is just a hole in a bad weld or if it is, far more likely, due to corrosion or fatigue. Corrosion might or might not be visible with a light if a large plug is removed but fatigue, which is as bad or worse than corrosion, will not be visible and a fatigue leak could very well mimic a pinhole type leak in a weld, besides a pinhole should have been obvious when the tank was new. Fatigue in a tank mostly occurs from vibration and cracks usually are found around welds on motor/pump mounts and bottom tank supports (feet). Fatigue cracks can also form due to expansion and contraction of the tank during normal operational discharge/recharge cycles and this is compounded if the tank is left to become completely discharged often. Tanks do expand and contract during operation and they do so to much greater degree than most think.