Hi Russ
On (15 Sep 96) Russ Williams wrote to Ivy Iverson...
 II> Absoloutely correct!  As long as the level in the two wells is equal,
 II> there will be zero siphon action.  Additionally, if any part of the
 II> pipe is more than aproximately 33 Ft. above the water level, even a
 RW>  ??????????????        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 II> pump won't be able to circulate water unless either the pump is
 RW> within
 RW>  You sure about this?  I'm no well or hydraulic expert, but all things
 RW>  being equal, it seems that any amount of pumping action would move the
 RW>  water no matter how high you are above the equal static levels.
When I was in Junior High School [1943] we were taught that there were two
kinds of pump- LIFT and FORCE.
The LIFT pump operates by suction, the atmospheric air pressure [about 15psi]
providing muscle in order to displace water that has a partial vacuum applied
to it. Hence the limit of 33 feet that applies near sea level. Much worse on
mountain tops!
The FORCE pump operates by "compressing" the liquid and propelling it upward.
Atmospheric air pressure is not a vital factor.
Our teacher had glass models of each type. The FORCE version would throw a 
very
strong jet, which he would demonstrate by firing same thru the classroom
window at passing traffic!
I didn't see the beginning of your message exchange. I make comment here 
bout
pumps, not about wells!    Cheers......ALEC
... ........BUNDANOON, on a dirt track leading to the Info Superhighway
--- PPoint 1.92
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