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<DIV><SPAN class=875502018-14112008>Hey, old friend and neighbor,</SPAN></DIV>
<DIV><SPAN class=875502018-14112008>Given that you live with the abandoned
Aermotor windmill on Old Windmill Trail at the bottom of your driveway ("yard
art"?), I suspect that you'll come out just fine in the water department. My
toes are crossed for you for the "sweet" part.</SPAN></DIV>
<DIV><SPAN class=875502018-14112008>Allan</SPAN></DIV>
<DIV><SPAN class=875502018-14112008></SPAN> </DIV>
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <B>On Behalf Of </B>Phil
Undercuffler<BR><B>Sent:</B> Friday, November 14, 2008 11:03 AM<BR><B>To:</B>
RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches] tankless hot water and pumping
question<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoPlainText><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><snip> off grid with water
being trucked in and stored in a ground level polyethylene
tank.<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><snip> My building inspector
does not allow grade level tanks as the warm temp adds to bacteria growth.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I agree with Darryl
about putting the tanks underground, otherwise they become veritable cornucopia
of bugs and nasties. Having lived 14 years off of rain water catch in NM
(supplemented with my fair share of hauled water) I strongly suggest adding a
simple low water indicator LED to give a warning <I><SPAN
style="FONT-STYLE: italic">before</SPAN></I> the tank runs dry. Otherwise
I guarantee the pump will begin to spit air just when you are standing in the
shower with shampoo in your hair. Ask me how I
know.<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The indicator can be a
cheap LED from Radio Shack, combined with a resistor to drop the voltage.
Calculating the resistor value is a simple matter, given the voltage drop across
LED and desired current in circuit. For instance, if your LED is rated for
1.7v & 20 mA, and your design voltage is 30 (highest expected voltage while
charging), <o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy
size=2><SPAN lang=PT-BR
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">30-1.7=28.3<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy
size=2><SPAN lang=PT-BR
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">28.3=IR<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy
size=2><SPAN lang=PT-BR
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">28.3/.02=R<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">R=1415<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Therefore, find a
resistor with a value near 1415 and wire it in series with the LED. I’ve
run the circuit into the house on standard signal cable (1 amp fuse at the power
end, of course) and installed the LEDs through a blank cover plate somewhere
unobtrusive but noticeable inside. Then, it’s a simple matter of tethering
a “pump up” (close on fall) float switch so that it triggers with enough time to
plan a water delivery. <o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I should also throw in
that, having made it through all this time living off the blessings (and curses)
of the Rain Goddess, the big news in the Undercuffler household is we’re finally
breaking down and putting in a well – yep, the driller shows up next week.
Keeping my fingers and toes crossed for sweet water, close to the
surface!<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Phil
Undercuffler<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Director, Battery-based
and Off-grid<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Distribution Sales
Group<o:p></o:p></SPAN></FONT></P>
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style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Conergy
<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Our World Is Full of
Energy<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN lang=PT-BR
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">1730 Camino Carlos Rey
Suite 103<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN lang=PT-BR
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Santa Fe, NM
87507<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN lang=PT-BR
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">p.undercuffler@conergy.us<o:p></o:p></SPAN></FONT></P>
<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN lang=PT-BR
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Direct |
505.216.3841<o:p></o:p></SPAN></FONT></P>
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style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Toll Free |
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style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Fax |
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<P class=MsoPlainText><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">www.conergy.us<o:p></o:p></SPAN></FONT></P>
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