On 2010-12-04, RBnDFW wrote:
On 12/4/2010 8:13 AM, Ignoramus4371 wrote:
On 2010-12-04, wrote:
OK, so I got a deal - Like new 60-gallon Kobalt compressor for $125 on CL.
He said it had a hole in the tank, but he couldn't find it.

So I got it home powered it up, and sure enough, there's a hole in the
bottom It's about 1/16", in the weld area adjacent to the large drain
bung at the very bottom.
Now, this thing looks brand new. I really don't think it's rust
perforation. the paint wasn't bubbled, and there is no rust at the edges
of the hole. i think it was just a porous weld. Anyway, I'd like to fix it.

Here's what I'm thinking: Drill out to whatever diameter gives good
thickness.
Tap it, and screw in a bolt.
Then either braze or silver solder

Better suggestions welcome.

It may be a crack in steel. I had a compressor tank that had such a
crack. You need to examine it closely.

i

Well, it's right on a weld where the bottom bung is attached.
I wish i still had that tank I sold you

The tank you sold me, was used to replace the tank with the above
mentioned crack. ;-)

I have a friend who is an ace welder with aircraft certs. I may run it
by his place and see what he thinks

It should be easy.