Originally Posted by Fl_Richard
A small flat point nail set with a hammer.... Place it where you can "squeeze" the tank wall to the indicator stem. Usually one good smack will seal it. - if not it needs fixing anyway
Ps. Brass nail set won't cause sparks.
Hehehe ... i am not sure if you are SERIOUS.
However, your suggestion is not as ridiculous as it first appeared, The tiny leak is at the thread where the indicator screw into the tank. by "jamming" a bit of the old sealant together may just stop the leak - temporary anyway.
Temperature in Phoenix is 92F , not sure what the pressure is inside the tank? call me coward if you like, but I think I will do a camping trip in the white mountain area (temperature around 40 - 50 at night) and let my furnace eat it up.