Science Question - Siphoning Liquid

[MN Dave]

You can siphon gas out of a car's gas tank, but can you siphon it out of a tank that is underground? Thanks.

[Lethevich]

You should try it and report the results to us...

[MN Dave]

You should try it and report the results to us...

Why should I when I have all the brains here working on it? 

[Lethevich]

Why should I when I have all the brains here working on it? 

This is what seperates you from the people on police video shows, choking on petrol or accidentely catching themselves alight

[MN Dave]

This is what seperates you from the people on police video shows, choking on petrol or accidentely catching themselves alight

[The new erato]

If you are further underground than the tank you can.

It only works from a higher level to a lower level since it is based on gravity.

[MN Dave]

If you are further underground than the tank you can.

It only works from a higher level to a lower level since it is based on gravity.

That's what I was thinking but I wasn't sure. Thanks.

[Szykneij]

They sell cheap pumps on ebay 

[MN Dave]

They sell cheap pumps on ebay 

If you're not kidding, what are these pumps generally used for and how common are they?

[head-case]

That's what I was thinking but I wasn't sure. Thanks.

If you could get a siphon to move water to a higher elevation you could siphon water to the top of a mountain and let it run through hydroelectric dams, supplying all of the worlds energy needs for nothing!  I advise giving it a try!

[MN Dave]

If you could get a siphon to move water to a higher elevation you could siphon water to the top of a mountain and let it run through hydroelectric dams, supplying all of the worlds energy needs for nothing!  I advise giving it a try!

Nah. I'm just using you guys to do research for some fiction. Post-apocalyptic fiction. 

[Szykneij]

http://cgi.ebay.com/NEW-1-2-HP-BIODIESEL-INDUSTRIAL-FARM-POND-PUMP_W0QQitemZ330204415214QQihZ014QQcategoryZ46547QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

[Bogey]

Nah. I'm just using you guys to do research for some fiction. Post-apocalyptic fiction. 

Dave,
If one of your characters discovers one of these "ebay pumps" all of a sudden, then your story will end coming across as contrived sounding as Michael Crichton's Sphere.   

[MN Dave]

Dave,
If one of your characters discovers one of these "ebay pumps" all of a sudden, then your story will end coming across as contrived sounding as Michael Crichton's Sphere.   

Yeah, I think they'll stick to siphoning gas out of vehicles. Especially since they can't really plug in anywhere. 

Oh, and hey, I liked SPHERE. 

[Bogey]

Yeah, I think they'll stick to siphoning gas out of vehicles. Especially since they can't really plug in anywhere. 

Oh, and hey, I liked SPHERE.