Actually, the oil may have some smell.
And, with a leak that big,
you should see an oil stain, I would
think.

Dr. Hardcrab wrote:
Not to nitpick, but

"Pop" wrote

If it's actually "freon" as you said, that has a pretty good odor
and at the loss rate you indicate, you should be able to smell it
yoruself, even.


Smell? Orderless and tasteless. Add a flame to it and you will get a smell.
(O.K., and it DOES taste cold....;-] ).
If it's leaking that fast, you may even HEAR it....


Also, if this is in the attic, I don't know why a hole would have
to be made in a wall. It should be pretty easy to pull out the
old and fish in a new pipe. IMO at least; no expert here, just
an avid diy'er.


I'd like to see you "fish" a 3/8 and an insulated 3/4 inch copper tube up 2
stories through several inch-and-a-half holes. Not an easy task. In fact
it's damn near impossible. ESPECIALLY if the original installed strapped the
lines to any of the studs in the wall.....


Just my two cents; I know it isn't my money, but if I were you I
think I'd try another service and if they came up with the same
results, consider replacing what needs to be done. It's still
cheaper than paying housecalls for freon every two weeks in your
climate.


How right you are.....