<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"Century Gothic";
panose-1:2 11 5 2 2 2 2 2 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:black;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
span.il
{mso-style-name:il;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;
color:black;}
span.EmailStyle23
{mso-style-type:personal-reply;
font-family:"Century Gothic","sans-serif";
color:windowtext;
font-weight:normal;
font-style:normal;
text-decoration:none none;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body bgcolor=white lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>We had about a 50% failure rate with Lorentz pumps and
controllers and stopped installing them, as Allan said “back when.”<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>The Grundfos SQ Flex pump has been our choice and not even 1 bad
one yet and same pump for DC and AC. Pretty bomber Pump.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>I would be glad to hear that they got it all sorted out.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>Thanks, Dana Orzel<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>Great Solar Works, Inc<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>web - www.solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>E - dana@solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>V - 970.626.5253<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>F - 970.626.4140<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>C - 970.209.4076<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>"We have been slow to give up on the myth of the Earth's
generosity.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>Rather grandly, we have overdrawn our accounts."<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'>Barbara Kingsolver - Water is life.</span><span
style='font-family:"Century Gothic","sans-serif";color:windowtext'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";
color:windowtext'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Allan
Sindelar<br>
<b>Sent:</b> Wednesday, April 21, 2010 4:41 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Lorentz Sub Pump<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:.5in'>We were burned pretty well by the period of bad
Lorentzes and vowed never again. Given the long time and close relationship
between Windy and myself, that wasn't decided lightly. Given Chris' and Jeff's
posts, I'm willing to cautiously reconsider.<br>
<br>
Dave, you need to find out the vintage of the pump you're dealing with. Our bad
ones were around 2003-5, then we stopped using them.<br>
<br>
I think the problem wasn't with the stator, as I never saw motor failure.
Rather, either the rubber compound or the manufacturing tolerances/coefficient
of expansion on the helical rotor surround were off, causing failure. Also, a
few controllers failed.<br>
<br>
I'm surprised I've not yet seen a problem with the SQFlex yet.<br>
Allan<o:p></o:p></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><span class=il><b>Allan</b></span><b>
Sindelar</b><span style='font-size:10.0pt'><br>
<a href="mailto:Allan@positiveenergysolar.com" target="_blank"><span class=il>Allan</span>@positiveenergysolar.com</a><br>
NABCEP Certified Photovoltaic Installer<br>
EE98J Journeyman Electrician<br>
<b>Positive Energy, Inc.</b><br>
3201 Calle Marie<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
<a href="http://www.positiveenergysolar.com/" target="_blank">www.positiveenergysolar.com</a></span><o:p></o:p></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><br>
<br>
Chris Worcester wrote: <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>Hi Dave,</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>We have
lots of the Lorentz systems in the field operating either from PV direct,
battery based or AC. I like them, and find them very reliable. You need to
check that the pump is matched to the well’s statistics. Did they install
the low water sensor with the pump?</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'> </span><o:p></o:p></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
color:navy'>Sincerely,<br>
<br>
Chris Worcester</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
color:navy'>Solar Wind Works<br>
NABCEP Certified PV Installer<br>
Phone: 530-582-4503<br>
Fax: 530-582-4603<br>
<a href="http://www.solarwindworks.com/">www.solarwindworks.com</a><br>
<a href="mailto:chris@solarwindworks.com">chris@solarwindworks.com</a><br>
"Proven Energy Solutions"</span><o:p></o:p></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'> </span><o:p></o:p></p>
<div>
<div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0in 0in 0in;
border-color:-moz-use-text-color -moz-use-text-color'>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> <a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Dave Palumbo<br>
<b>Sent:</b> Monday, April 19, 2010 12:41 PM<br>
<b>To:</b> 'Wrench List'<br>
<b>Subject:</b> Re: [RE-wrenches] Lorentz Sub Pump</span><o:p></o:p></p>
</div>
</div>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Wrenchers,<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Looking for advice on the following
pump. Lorentz PS600-HR04H-1-48B with power pack option and controller. <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>I will be doing an off-grid system
for a homeowner who already who had purchased this pump, in fact it is down the
well already, although not working, or even wired to anything yet. The
dealer who sold her this pump is no longer working this job. That dealer did
not install anything else. So, we have a clean slate except for this pump.<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Homeowner is willing to go with
another pump if I’m not satisfied of this pumps quality, suitability for
her home and reliability. <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>I have never used a Lorentz pump
before. I do recall some mixed reviews over the years on this list on Lorentz
pumps. <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Typically for a home like this
(modest water needs) I would install a Grundfos SQ AC pump with a standard
pressure tank and run it off the inverter. <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>We could do a 48 volt battery bank
for this home, so we could do the Lorentz pump. This pump is designed to be
powered with 48VDC nominal correct?<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Is it a reliable pump? <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Or will it be more trouble than the
AC Grundfos?<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Thanks,<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Dave<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>David Palumbo, NABCEP Certified PV
Installer<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Independent Power LLC<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Offices in Lamoille and the
Champlain Valley<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>802.888.7194 <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><a
href="http://www.independentpowerllc.com">www.independentpowerllc.com</a> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<pre style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:
.5in;text-align:center'>
<hr size=4 width="90%" align=center>
</pre><pre style='margin-left:.5in'><o:p> </o:p></pre><pre
style='margin-left:.5in'>_______________________________________________<o:p></o:p></pre><pre
style='margin-left:.5in'>List sponsored by Home Power magazine<o:p></o:p></pre><pre
style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:.5in'>List Address: <a
href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><o:p></o:p></pre><pre
style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:.5in'>Options & settings:<o:p></o:p></pre><pre
style='margin-left:.5in'><a
href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><o:p></o:p></pre><pre
style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:.5in'>List-Archive: <a
href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><o:p></o:p></pre><pre
style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:.5in'>List rules & etiquette:<o:p></o:p></pre><pre
style='margin-left:.5in'><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a><o:p></o:p></pre><pre
style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:.5in'>Check out participant bios:<o:p></o:p></pre><pre
style='margin-left:.5in'><a href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a><o:p></o:p></pre><pre
style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:.5in'> <o:p></o:p></pre>
<p style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:windowtext'>No virus found in this incoming message.<br>
Checked by AVG - www.avg.com<br>
Version: 9.0.814 / Virus Database: 271.1.1/2826 - Release Date: 04/21/10
05:09:00</span><span style='color:windowtext'><o:p></o:p></span></p>
</div>
</body>
</html>