Retired my old portable air tank -- heard a fizzing sound in the shop
and found a rust blister on the bottom at the lowest point. I am not
the sort who can discard something metal due to an expiration date, so
I wonder if I shouldn't re-orient the next tank to put the air inlet at
the lowest point?
I'm not one of those sky-is-falling types, but if you know your tank has rusted
to the point air is beginning to audibly escape, can a catastrophic failure be
far behind? I hate to say this, but I recommend replacing the air tank. Make it
into a forge or a garbage can or something, but don't use it for compressed air
That's my 2¢ worth, anyway.
"Dave" wrote: clip) I wonder if I shouldn't re-orient the next tank to put
the air inlet at the lowest point?
I think you should rotate your new tank a few degrees every month, so it
rusts out uniformly.
I found a time delay relay at the scrap yard. It is hooked up to trigger
a valve at the bottom of my compressor tank so it opens for a fraction
of a second each time the motor kicks in. Blasts the moisture out great,
I haven't noticed any moisture in my lines even when hot and humid out
(it gets real humid in Maine at times). The one drawback is that in cold
weather the air exiting the valve can leave a little ice in there,
causing a slow leak.
Putting the air inlet at the bottom does nothing while you are
filling it, only when you want to drain out the accumulated water.
Fill the portable tank, rotate it till the air outlet fitting is at
the lowest point (keeping the outlet hose high so the water doesn't
flow that way) and vent the fill port tire chuck for a few seconds to
drain any moisture, then rotate it upright and top off the air again.
When you use the air you want the valve at the top, you don't want
to pass the water along to your tires or other equipment.
I guess my thought was that this would give you some good options. Some
sort of external water collection chamber could be added at the
fitting, or the water could be blown out at the first useage after
They really should put a dedicated drain valve and fitting on those
portable tanks, but then their tank would cost $1 more than the
competition and their sales would drop. Or so says the MBA that took
over the company when the people with practical knowledge got forced
Show me how it's better, and I'll pay a bit more for your product.