Oddball backyard water pumping project [RE-wrenches]

[Travis Creswell]

A 100 GPM sounds like a bunch but in this sort of application it's likely
not.  Just taking a SWAG here....1/2 Gallon per cup x 24 Cups x 10 RPM = 120
GPM.  It all depends on how big a wheel he wants and how many RPMS he wants.
Cut that above calculation by 75% and your still at 30 GPM.

>From memory a SQF Flex at the sort head of could do well over 60 GPM (80?)
with 900 watts or less.  With a little imagination one could come up with a
solar direct battery less system that used some relays a timer and a
photocell.  So at sunrise the pump turns on, at sun set a double throw relay
arrangement switches from solar to grid then at 10PM the system shuts of and
repeats the cycle at the next sunrise.  It would also be possible to put an
override in the there so the customer could turn off the system when he was
not going to home for extended periods or turn it on when the garden party
extended in the wee hours.

The net benefit not using batteries just so the system could run a few more
hours a day would be well worth the price and environmental impact.

Yes, fountains are cool.  I'm about halfway through building two ponds about
an acre each at a low spot in my property to catch and retain natural run
off that will have a "stream" connecting them.  I'm mentally playing around
with flow rates and pumping methods for moving water between them to create
some moving water features.

Travis Creswell
Ozark Energy Services



----- Original Message ----- 
From: "Kurt Albershardt" <info at es-ee.com>
>
> We upgraded a system feeding a waterfall with a Solar Force piston pump
and 5x Siemens SP75 panels.  Pretty much everything else the original
installer sold them was replaced or upgraded: inverter powered AC fountain
pump replaced with a 12V Oasis, installed a DC timer and QO load center for
all the DC.  C40 and the L16s died about a year later, so we put in an MPPT
charge controller and large stack of AGM cells.  Inverter is still there on
a manual switch in case they need to run a power tool
> out there.  Still running after ~6 years now.
>
>
> --On Wednesday, January 09, 2008 1:00 PM -0800 Joel Davidson
<joel.davidson at sbcglobal.net> wrote:
>
> >
> > Wrenches,
> > A neighbor is putting in a shallow decorative pond with a wooden water
wheel. He wants to pump water (100 gpm but I think that is way too much)
from the pond up 7 feet to turn the water wheel. Yes, I know that this is
not the best use for power, but the world would be a sadder place without
fountains, ponds, and water decorations. Instead of utility power I
suggested using a solar powered DC direct drive pump, but he wants the water
wheel to turn until 10pm. Any suggestions would be most
> welcome. Thanks in advance.
> > Joel Davidson


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