On Mon, 24 Oct 2005 19:20:04 -0700, "Glenn"
wrote:


"Carla Fong" wrote in message
news:M9c7f.3357$HW5.395@trnddc04...
Ignoramus5533 wrote:

I am thinking of making a homemade TIG water cooler. If I buy a
carbonator pump with motor, and I already have a nice condenser heat
exchanger (actually about 20 of little cute 12" ones), then all I need
in addition is a water reservoir (like a 5 gallon bucket), a 24 v
relay to turn on when my welding machine says so, and a little fan to
cool the heat exchanger. I have a lot of such fans. Am I missing
something?

thanks

Nobody has yet commented on the appropriateness of a carbonator pump for
this application -

I think it's a bad idea - carbonator pumps are high speed vane pumps,
(they're not positive displacement but they get unhappy (and hot enough to
boil the water in them) when throttled down...) And generally use a 1/4 or
1/3 HP motor - noisy and consume a lot of power.

For as little flow and pressure as you'll need, a pump from a garden
fountain should be fine - probably cheaper, too if you're buying one new.

Carla

I didn't know what a carbonator pump was so didn't say anything If it is
truely that big a pump it is overkill. A swamp cooler pump would be a good
choice also. They come in a 220V variety that may be handy if you want to
run it from the welder.
Glenn

A carbonator pump, sans the standard 1/4hp motor..will fit in half a
Coke can. They are not big. I have 3 of them running on tig units.
The pump themselves make little noise..the only noise being the motor
turning it. And few 1/4hp motors make much sound. The fans on my
chillers make more sound than any of the pump/motor combos.

Swamp cooler pumps again are volume, not pressure. If you are
lucky..you may..may get 20psi out of one.

Gunner

"Pax Americana is a philosophy. Hardly an empire.
Making sure other people play nice and dont kill each other (and us)
off in job lots is hardly empire building, particularly when you give
them self determination under "play nice" rules.

Think of it as having your older brother knock the **** out of you
for torturing the cat." Gunner