On Fri, 21 Dec 2012 19:59:29 -0600, Vic Smith
wrote:

On Sat, 22 Dec 2012 08:38:31 +0700, Bruce
wrote:



Actually it doesn't work that way here. Firstly, one buys the
absolutely cheapest vacuum pump that one can find. One has never hear
of a "micron gauge" so one uses the standard two gauge set. Time is
money and there is another customer waiting so vacuuming (which
produces no visible results) is done as quickly as possible - usually
until the gauge stabilizes and then load the refrigerant, and then
demonstrate the air from the evaporator is cold, shut down and get the
money. NEXT! :-)

(and damn! it seems to work :-)

And that's why they say "Whatever works." (-:


Years ago, in North Thailand, I used to walk past a little welding
shop where the guy did most of the work out on the sidewalk. Anyway,
one day I came walking by and the guy's got this great big single
cylinder diesel engine out on the sidewalk and one of the mounting
feet is broken off - big chunk of cast iron with the mounting bolt
hole in it. The guy's got it all "vee ed out" and propped up right
where it broke off. and he's welding it back on using regular old,
6011, mild steel welding rod.

Now, you can ask any welder and he'll tell you that you, "can't weld
cast iron with regular steel rods", but this guy is doing it :-) A few
days go buy and every day I can see he has welded a little more and
finally one day I go by and there is no big engine on the sidewalk. So
I ask the guy how it went and he, vary nonchalantly tells me he got it
finished and they took it back to the rice mill to install it. I asked
him whether he though it would hold and he told me that "none of the
other ones I've done have broken".

Now just like not vacuuming down an AC for a long time you can't weld
cast iron with mild steel rods...... but they do :-)
--
Cheers,
Bruce