In article ,
"Steve W." wrote:

Tom Gardner wrote:
I have a 30 gallon Dayton tank, about 25 years old. It developed a
crack right next to where a leg is welded on. The tank had the failure
early in it's life at about 5 years old. It's been sitting ever since.
Grainger wants $600 now, I think I paid $200. It has a 5hp Kellog
American 2-stage pump that has very few hours on it after a re-deux. At
one time it was hooked up to the system as a 3rd tier back-up and the
tank was bypassed. It only ran during a monthly test.

I'm thinking of adding it as an air supply on the far side of the shop,
about 150' as we are making additional work cells there.

Can I repair it and get it certified or should I Send it out to be
repaired? I've seen exploded tanks and I hope to avoid that.


Send it out to a certified shop. That way you are covered if it fails. I
don't trust most compressors and locate them either outside the normal
work areas or inside a separate room. That also allows for much quieter
shop floor and usually cleaner air since you can install larger filters.
My current compressor is set up in a small 8X8 shed located next to the
shop. I also keep the spare parts like oil and belts in there as well.

Tanks also last longer if the compressor is not mounted to them. Mount
the compressor on vibration mounts to a solid foundation, give it a nice
long cooling run to the tank with a drain leg, and save the tank a bunch
of vibratory fatigue stress. Me at least 3 for keeping it outside to
minimize noise and the extent of bad things that can happen (borrow from
boiler houses and design your shed with strong walls and a weak roof if
you want to be even more cautious about tank explosions.)

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