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Gary,<br>
<br>
I've had trouble with the rubber sticking to the helical rotor in a
couple Lorentz pumps. Both were off for several months during the
winter because the cattle are gone. Seems like your Grundfos pump
situation is different.<br>
<br>
Kent Osterberg<br>
Blue Mountain Solar<br>
<br>
<br>
Gary Gordon at SYV Solar wrote:
<blockquote cite="mid:00a501cb7faa$874e13c0$4001a8c0@PSW" type="cite">
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<div dir="ltr" align="left"><span class="062360601-09112010"><font
face="Arial" size="2">Kent,</font></span></div>
<div dir="ltr" align="left"><span class="062360601-09112010"></span> </div>
<div dir="ltr" align="left"><span class="062360601-09112010"><font
face="Arial" size="2">It would only be off if the tanks were full. Why?</font></span></div>
<div dir="ltr" align="left"><span class="062360601-09112010"></span> </div>
<div dir="ltr" align="left"><span class="062360601-09112010"><font
face="Arial" size="2">Gary</font></span></div>
<br>
<div dir="ltr" class="OutlookMessageHeader" align="left" lang="en-us">
<hr tabindex="-1"><font face="Tahoma" size="2"><b>From:</b>
<a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Kent
Osterberg<br>
<b>Sent:</b> Monday, November 08, 2010 4:58 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Grundfos<br>
</font><br>
</div>
Gary,<br>
<br>
Any chance that the pumping system is off during the winter?<br>
<br>
Kent Osterberg<br>
Blue Mountain Solar<br>
<br>
Gary Gordon at SYV Solar wrote:
<blockquote cite="mid:009101cb7fa7$bb019460$4001a8c0@PSW" type="cite">
<meta name="GENERATOR" content="MSHTML 8.00.6001.18928">
<div dir="ltr" align="left"><span class="421043600-09112010"><font
face="Arial" size="2">Wrenches,</font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span> </div>
<div dir="ltr" align="left"><span class="421043600-09112010"><font
face="Arial" size="2">More details on the Grundfos failures:</font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"><font
face="Arial" size="2"> 1st failure 11 SQF-2 w/ 204ft TDH </font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span><span
class="421043600-09112010"><font face="Arial" size="2"> 2nd failure 6
SQF-2 w/ 220ft. TDH </font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span><span
class="421043600-09112010"><font face="Arial" size="2"> 3rd failure
6 SQF-2 w/ 253ft. TDH </font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span> </div>
<div dir="ltr" align="left"><span class="421043600-09112010"><font
face="Arial" size="2">All controllers were displaying F3 failures,
there was voltage at the well head. Only one replaced so far and seems
to work fine.</font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span> </div>
<div dir="ltr" align="left"><span class="421043600-09112010"><font
face="Arial" size="2">Any ideas or similar problems?</font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span> </div>
<div dir="ltr" align="left"><span class="421043600-09112010">
<div align="left"><font face="Arial" size="2">Gary Gordon</font></div>
<div align="left"><font face="Arial" size="2">Santa Ynez Valley
Solar</font></div>
<div align="left"><font face="Arial" size="2">P. O. Box 688</font></div>
<div align="left"><font face="Arial" size="2">Santa Ynez, CA 93460</font></div>
<div align="left"><font face="Arial" size="2">805 688-1213</font></div>
<div align="left"><font face="Arial" size="2"><a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:Gary@SYVSolar.com">Gary@SYVSolar.com</a></font></div>
</span></div>
<br>
<div dir="ltr" class="OutlookMessageHeader" align="left"
lang="en-us">
<hr tabindex="-1"> <font face="Tahoma" size="2"><b>From:</b> <a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Mike Nelson<br>
<b>Sent:</b> Saturday, November 06, 2010 10:07 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Grundfos<br>
</font><br>
</div>
<div>Doug, </div>
<div>Thanks for the feedback. I have to install the monoflo,
because it was purchased 2 summers ago, but the customer didn't have
the site work done to install the pump. This summer the site work was
finished and now the customer is ready to have the system installed, so
wish me luck!</div>
<div> </div>
<div>DC Power is getting out of the pumping biz, so is Wholesale
solar up north, hopefully Solar Depot will remain in it. Our only other
option is to go through the plumbing supply houses.</div>
<div> </div>
<div>I hear the bugs are being worked out of the Lorentz pump line,
anyone have any experience with them?</div>
<div> </div>
<div>Mike Nelson</div>
<div>MD Electric & Solar</div>
<div>Gualala, Ca.<br>
<br>
</div>
<div class="gmail_quote">On Sat, Nov 6, 2010 at 7:45 AM, Doug Pratt
<span dir="ltr"><<a href="mailto:dmpratt@sbcglobal.net"
moz-do-not-send="true">dmpratt@sbcglobal.net</a>></span> wrote:<br>
<blockquote
style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;"
class="gmail_quote">
<div vlink="purple" link="blue" lang="EN-US">
<div>
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;">Mike, from another
Mendo native, don’t do the Monoflo. DC Power is getting out of the
pumping biz, and we’re the only Monoflo distributor in the US. Our
experience with Monoflo hasn’t been good. We’ve seen a number of pump
failures recently, support from the manufacturer is pretty thin, and
troubleshooting in the field is poorly developed and documented.
Basically it’s… pump not working? Try plugging in a new controller.
Still not working? Plug in a new pump. Dealers don’t keep expensive
pumps on the shelf in case of breakdowns, so repairs usually end up
taking weeks. Not good for dealer/customer relations!</span></p>
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;"></span> </p>
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;">DC Power is getting
out of water pumping because we just don’t have the technical bandwidth
anymore. We’re being pressed so hard by the rapidly-expanding grid-tie
market that our tech support crew is getting loved to death. There’s no
time. I’m sorry to see it go, I found water pumping projects
challenging and interesting, but the tech cloning project has hit some
snags.</span></p>
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;"></span> </p>
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;">From a sales
perspective, the Grundfos SQ Flex was the best of the lot. We heard the
fewest problems from them, and those problems were usually on the
surface (the CU200 control).</span></p>
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;"></span> </p>
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;">Doug Pratt</span></p>
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;">DC Power Systems </span></p>
<div class="im">
<p class="MsoNormal"><span
style="color: rgb(31, 73, 125); font-size: 11pt;"></span> </p>
<div
style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span
style="font-size: 10pt;"> <a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank"
moz-do-not-send="true">re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank" moz-do-not-send="true">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Mike Nelson<br>
<b>Sent:</b> Friday, November 05, 2010 5:37 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Grundfos</span></p>
</div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">I have also installed several Grundfos SQ
Flex submersible well pumps, and had trouble with them, primarily with
the control systems, the low water shut off sensor has failed on
several pumps, and the CU200 control boxes have failed. The pumps
themselves have held up so far, and seem to be very efficient. I wish
there were more solar direct well pump options, I've tried the ETA
pumps, the Sunpumps (which are great for low head, low flow) and am
about to try a Monoflow. Any other thoughts?</p>
</div>
<div>
<div class="h5">
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Mike Nelson</p>
</div>
<div>
<p class="MsoNormal">MD Electric & Solar</p>
</div>
<div>
<p style="margin-bottom: 12pt;" class="MsoNormal">Gualala Ca.</p>
</div>
<div>
<p class="MsoNormal">On Fri, Nov 5, 2010 at 4:40 PM, Gary Gordon
at SYV Solar <<a href="mailto:gary@syvsolar.com" target="_blank"
moz-do-not-send="true">gary@syvsolar.com</a>> wrote:</p>
<div>
<div>
<p class="MsoNormal"><span style="font-size: 10pt;">Wrenches,</span></p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"><span style="font-size: 10pt;">I set up the
PV arrays for six Grundfos SQ Flex submersible well pumps on a cattle
ranch. The first three have failed (in exact order of installation) in
about a year. Anyone else experiencing similar problems? I had always
heard great things about their equipment, is it time to look elsewhere?
Where?</span></p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"><span style="font-size: 10pt;">Gary Gordon</span></p>
<p class="MsoNormal"><span style="font-size: 10pt;">Santa Ynez
Valley Solar</span></p>
<p class="MsoNormal"><span style="font-size: 10pt;">P. O. Box 688</span></p>
<p class="MsoNormal"><span style="font-size: 10pt;">Santa Ynez,
CA 93460</span></p>
<p class="MsoNormal"><span style="font-size: 10pt;">805 688-1213</span></p>
<p class="MsoNormal"><span style="font-size: 10pt;"><a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:Gary@SYVSolar.com">Gary@SYVSolar.com</a></span></p>
</div>
</div>
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