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Mac:<br><br>
We've dealt with this. The best solution is altitude. If
there is any terrain on which you could put the tank, you save a lot of
complexity.<br><br>
Alternatively, can the well pump deliver into a pressure tank,
pre-pressurizing the water? This would also save a bunch of extra
parts.<br><br>
William<br><br>
<br>
At 07:40 PM 12/14/2011, you wrote:<br>
<blockquote type=cite class=cite cite>Wrenches, wrenchers and
wrenchees,<br><br>
I've got a pump control question. Working on a stand-alone pumping
station in Haiti. I am planning on using a Grundfos SQflex pumping
system with a Cu 200 and a float switch. Also needed on site, is a
small pressure pump to force water through a purification system.
This part won't take much power, and the cistern will sit full most of
the time, so I'd like to be able to take advantage of this. I am
thinking that I would like to figure out a control system that works off
of the float switch that when the float is up, the array leads disconnect
from the pumping system and connect to a charge controller that charges
up some batteries that will be used to power the pressure pump.<br><br>
Has anyone designed anything like this? Any ideas on how to do
this? I think I can use an op amp to amplify the 15 mA signal on
the float switch to push a relay, but that may not be as reliable as it
should be.<br><br>
Thanks in advance.<br><br>
Mac Lewis<br>
-- <br><br>
<font color="#305A78"><br>
</font><br>
Mac Lewis<br><br>
<font face="Verdana"><b>"Yo solo sé que no sé nada."
-Sócrates<br>
</b></font><br>
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