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Scary Water Pump

F

Frank Bemelman

Tony Bryer said:
Older friends will remember the Flit flykiller sprays that worked
just like this - far more ecological (from a material pov only) than
aerosol cans. For a picture see
http://www.packagemuseum.com/packagemuseum/exhibits/flit01/flit01.htm

Some 15 years ago, in Tunesia, I saw a butcher using it on the
cadavers hanging outside his shop, against the wall in the bright sun.
The sheepheads where in carton boxes, and bargained as 3 for the price
of 2.
 
P

Paul Hovnanian P.E.

Tony said:
I don't know how effective it might be, but you might
consider using the exhaust airflow to suck up the water.

------------------------------------
-->Airflow--> --> Air+Water -->
-----------------/ /----------------
/ /
/ /
Water

I'll think I'll patent that, call it a carburettor maybe.

Its been done. If you have a compressed air supply there are some nice
venturi vaccum cleaners. These are particularly handy if you need to
clean up flammable dust (like gunpowder). Think about what happens when
you try this with a shop vac and the powder hits the motor brushes. 8-O
 
P

Paul Hovnanian P.E.

Graham said:
(snip)

I have used one to pump air out of a barrel. Another pipe from the barrel
can be used to suck up water. You have to make sure that water level never
reaches the air pipe, and you can only run it briefly as there isn't enough
air going through the motor to cool it.

You have just (re)invented the wet-dry shop vac. :)
 
S

Spehro Pefhany

Jesse or Ace? ...or perhaps you meant venturi? ;-)

I thought I'd continue in the same vein as the previous two posters by
misspelling the one important word. ;-)

And, BTW, the answer is "freeway".

Best regards,
Spehro Pefhany
 
S

Spehro Pefhany

carburettor

P.S. Yes, this is correctly spelled for some of the offshore
English-speaking lands, but in the US and Canada it's usually written
as "carburetor".

Best regards,
Spehro Pefhany
 
T

Tom Del Rosso

Duncan said:
How about: /\ Vacuum
|
| |
| |
| |
------------------------------------| |
-->Airflow--> --> Air+Water |
-----------------/ /----------------| |
/ / _| |_
/ / | | |
/ / | \/ | Water
/ / |~~~~~|
/ / |_____|
Water

Would that work, or would all the water still end up in the vac?

-Duncan

I think it would work if you made the vertical pipe on the right much
wider so its flow was slower than the horizontal pipe.
 
R

Richard Henry

Spehro Pefhany said:
P.S. Yes, this is correctly spelled for some of the offshore
English-speaking lands, but in the US and Canada it's usually written
as "carburetor".

This got me thinking. Other than US and Cnada, is English an official
language anywhere that is not an island.

Note: Yes I know Australia is a "continent", but please...
 
G

geoff

Spehro Pefhany said:
P.S. Yes, this is correctly spelled for some of the offshore
English-speaking lands, but in the US and Canada it's usually written
as "carburetor".
Err ... and the name of this newsgroup is ???

And what exactly do you mean by offshore?
 
G

geoff

Paul Hovnanian P.E. said:
Its been done. If you have a compressed air supply there are some nice
venturi vaccum cleaners. These are particularly handy if you need to
clean up flammable dust (like gunpowder). Think about what happens when
you try this with a shop vac and the powder hits the motor brushes. 8-O
OMG - another IMM, ... irony failure
 
T

Tony Williams

carburettor
[/QUOTE]
P.S. Yes, this is correctly spelled for some of the offshore
English-speaking lands, but in the US and Canada it's usually
written as "carburetor".

You don't know what a close shave you've just had Speff....

The wick was already burning on the Williams Patent Brick Outhouse,
(modified to take methane ramjets and the SH1-T guidance package).
I only just managed to run over and pull the flush.
 
M

Michael

Hi


I thought I'd ask about this. Is it possible to use a conventional
cylinder vacuum cleaner (old sausage dog type) to pump clean water?
These cleaners work by passing the filterd air stream through the
motor to cool it, so the water would go thru motor as well.

For any unaware person reading this, don't do it as its clearly
dangerous, my question is whether its _possible_?


Regards, NT :)

At 240V you will blow either the fuse or the windings,
Put a toaster or a kettle in series with it to limit the current,
Or try running it from DC 24V or 48V.
 
A

Allen Windhorn

Liberia?

It's "an" official language in India. There are more English-speaking
people in India than in the U.S. and Canada combined (I hear).

Allen
 
J

John Laird

This got me thinking. Other than US and Cnada, is English an official
language anywhere that is not an island.

Botswana, Kenya, Nigeria, Pakistan, The Philippines, South Africa,
Singapore, The Gambia. "An", not "The", I suspect in some cases.
 
N

N. Thornton

...... Too late! .....


The experiment has been done. The vac cleaner (unmodified) was plugged
into the mains (240v), and the pipe stuck in the water tank. This is
not a wet n dry vac!

It pumped the entire contents of the 1000 gallon tank out sucesfully.
The water went up the inlet pipe, thru the impellor, directly thru the
motor running on 240v mains, and out the back end. And it did the lot.

And it still works now. No series limiting resistance, no reduced
voltage, nothing.


And now I'm gonna confess something :) It had already been done
before I started this thread. I wouldn't have claimed it could be done
otherwise :) I didnt do it, its a barking idea, someone else did it,
and the vac still works fine afterwards.

You were so convinced it wouldn't work. You were convinced, even tho
you hadn't done the experiment and could find no convincing
theoretical reason that would stop it. You were also convinced it was
dangerous: it is if you just plug it in, tho with proper earth bonding
to case, water outlet and inlet, it can be made safe. It just operates
as an electrode heater, which is standard industrial kit.

This all tells me something about people, emotions, assumptions,
logic, and showmanship.


Regards, NT

PS dont try this at home, ever.
 
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