<div dir="ltr">Hi Windy,<div> I have a question about 3 phase pumps but slightly off topic for this thread. I have a Lorentz pump I bought from you 18 years ago and is at 480 feet and my well will only</div><div>give me 1 gpm with occasional air coming up . I replaced the control board 3 years ago and it had been working fine. It quit a few months ago right when we were getting into a drought here in Vermont. How can I be sure it is a controller issue and not the pump itself. My spring has dried up and I am now pumping from my other building and another spring 800' away using a Shurflow 12v pump. It is not doing well. You mentioned a Lorentz distributor which triggered me to jump in here. Is there a way to determine if the pump is good with resistance test of each leg? Or leg to leg with wires disconnected from controller? </div><div><br></div><div>John Blittersdorf</div><div>CV Wind Service (and Solar)</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Sep 20, 2018 at 9:15 PM Windy Dankoff <<a href="mailto:windydankoff@mac.com" target="_blank">windydankoff@mac.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word;line-break:after-white-space"><div style="word-wrap:break-word;line-break:after-white-space"><div>Mac \u2014 Jay has a good suggestion of the Grundfos RSI. There are other companies making \u201csolar pump inverters\u201d to run standard 3-ph. pumps. And, that IS the way to go for systems of this size. </div><div><br></div><div>Another supplier in USA is SunPumps. Another is GenPro (Lorentz distributor).</div><div><br></div><div>How to compare them? The inverter will represent a small proportion of the system cost, so I would have to ask each prospective supplier to produce a system design for you. Compare them carefully in regard to how they are expected to handle less-than full sun conditions. Also \u201cbells and whistles\u201d can be extremely helpful, meaning data-logging and remote connectivity and control features. Another rare feature is the ability to handle both solar and backup power sources, not merely by transfer switch or relay but by blending them with solar priority.</div><div><br></div><div>Lorentz has been the leader in these features, but others have been catching up. I hope you (and others) will report back about your findings! I\u2019m still researching this field form my upcoming book.</div><div><br></div><div><div style="font-family:Helvetica;margin:0px"><span style="font-family:"Marker Felt""><font size="4">Windy Dankoff</font></span></div><div style="margin:0px"><font class="m_-5770391759525037130m_-8951743932018130611Apple-style-span" face="'Marker Felt'"><font face="Marker Felt" size="4">Author, </font></font><span style="font-family:"Marker Felt";font-size:large;text-align:-webkit-auto">Consultant</span></div><div style="margin:0px"><font class="m_-5770391759525037130m_-8951743932018130611Apple-style-span" face="'Marker Felt'"><font face="Marker Felt" size="4"><br></font></font></div><div style="font-family:Helvetica;margin:0px"><font face="Helvetica" style="font-size:18px;color:rgb(58,136,254);text-align:-webkit-auto"> </font><a href="http://www.windydankoff.com/" style="font-size:18px;text-align:-webkit-auto" target="_blank">http://www.windydankoff.com</a></div><div style="font-family:Helvetica;margin:0px;font-size:12px;min-height:14px"><font color="#3a88fe" style="font-size:18px"><br></font></div><p style="font-family:Helvetica;margin:0px"></p><div style="font-family:Helvetica;margin:0px"><font face="Helvetica" style="font-size:12px"> Specialist in solar-electric applications & solar water pumping</font></div><div style="font-family:Helvetica;margin:0px"><font face="Helvetica" style="font-size:12px"> Education <> Industry support <> Since 1975</font></div><div style="font-family:Helvetica;margin:0px"><font face="Helvetica" style="font-size:12px"><br></font></div><div style="font-family:Helvetica;margin:0px"><div style="margin:0px"><div style="font-family:Arial;word-wrap:break-word;line-break:after-white-space"><span class="m_-5770391759525037130m_-8951743932018130611Apple-style-span" style="font-family:Helvetica;font-size:12px">Co-author </span><u style="font-family:Helvetica;font-size:12px">Solar Water Pumping</u><span style="font-family:Helvetica;font-size:12px"> (Taylor & Francis, <i>Earthscan </i>London) for publication in 2019</span></div><div style="font-family:Arial;word-wrap:break-word;line-break:after-white-space"><span style="font-family:Helvetica;font-size:12px"><br></span></div></div></div></div><div style="font-family:ArialMT;background-color:rgb(255,255,255);margin:0px"></div><br><blockquote type="cite"><div style="font-family:ArialMT;background-color:rgb(255,255,255);margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(127,127,127)"><b>From: </b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">Jay <<a href="mailto:jay.peltz@gmail.com" style="color:purple" target="_blank">jay.peltz@gmail.com</a>><br></span></div><div style="font-family:ArialMT;background-color:rgb(255,255,255);margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(127,127,127)"><b>Subject: </b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif"><b>Re: [RE-wrenches] High Volume Solar Pumping</b><br></span></div><div style="font-family:ArialMT;background-color:rgb(255,255,255);margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(127,127,127)"><b>Date: </b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">September 20, 2018 at 11:24:39 AM MDT<br></span></div><div style="font-family:ArialMT;background-color:rgb(255,255,255);margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(127,127,127)"><b>To: </b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" style="color:purple" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br></span></div><br style="font-family:ArialMT;background-color:rgb(255,255,255)"><br style="font-family:ArialMT;background-color:rgb(255,255,255)"><div style="font-family:ArialMT;background-color:rgb(255,255,255)"></div><div style="font-family:ArialMT;background-color:rgb(255,255,255)">Mac </div><div style="font-family:ArialMT;background-color:rgb(255,255,255)">Look at the grundfos RSI </div><div style="font-family:ArialMT;background-color:rgb(255,255,255)"><br></div><div style="font-family:ArialMT;background-color:rgb(255,255,255)">It\u2019ll go up to 37kw for standard 3 phase pumps. </div><div style="font-family:ArialMT;background-color:rgb(255,255,255)"><br></div><div style="font-family:ArialMT;background-color:rgb(255,255,255)">At 37kw it\u2019s 480 3 phase output and 1000vdc input if I remember correctly </div><div style="font-family:ArialMT;background-color:rgb(255,255,255)"><br></div><div style="font-family:ArialMT;background-color:rgb(255,255,255)">Jay</div></blockquote><div><br><blockquote type="cite"><div></div></blockquote></div><blockquote type="cite"><div><blockquote type="cite"><div>On Sep 20, 2018, at 3:01 PM, <a href="mailto:re-wrenches-request@lists.re-wrenches.org" target="_blank">re-wrenches-request@lists.re-wrenches.org</a> wrote:</div><br class="m_-5770391759525037130m_-8951743932018130611Apple-interchange-newline"><div><div style="font-family:ArialMT;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration:none;margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(127,127,127)"><b>From:<span class="m_-5770391759525037130m_-8951743932018130611Apple-converted-space"> </span></b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">Mac Lewis <<a href="mailto:maclewis1@gmail.com" style="color:purple;text-decoration:underline" target="_blank">maclewis1@gmail.com</a>><br></span></div><div style="font-family:ArialMT;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration:none;margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(127,127,127)"><b>Subject:<span class="m_-5770391759525037130m_-8951743932018130611Apple-converted-space"> </span></b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif"><b>[RE-wrenches] High Volume Solar Pumping</b><br></span></div><div style="font-family:ArialMT;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration:none;margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(127,127,127)"><b>Date:<span class="m_-5770391759525037130m_-8951743932018130611Apple-converted-space"> </span></b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">September 20, 2018 at 11:04:21 AM MDT<br></span></div><div style="font-family:ArialMT;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration:none;margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(127,127,127)"><b>To:<span class="m_-5770391759525037130m_-8951743932018130611Apple-converted-space"> </span></b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" style="color:purple;text-decoration:underline" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br></span></div><br style="font-family:ArialMT;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration:none"><br style="font-family:ArialMT;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration:none"><div dir="ltr" style="font-family:ArialMT;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration:none">Hello Wrenches,<div><br></div><div>This is a larger volume pumping application than I have designed before so I'm trying to head in the right direction.</div><div><br></div><div>We need ~ 144,000 gallons per day</div><div>Head is ~70'</div><div><br></div><div>We'd like to do this via a surface pump(s) if possible.</div><div><br></div><div>Do you know any equipment that may be able to do this volume per day?</div><div><br></div><div>Thanks in advance<br clear="all"><div><br></div>--<span class="m_-5770391759525037130m_-8951743932018130611Apple-converted-space"> </span><br><div dir="ltr" class="m_-5770391759525037130m_-8951743932018130611gmail_signature" data-smartmail="gmail_signature"><div><br></div>Mac Lewis<br></div></div></div></div></blockquote></div><br></blockquote></div></div>_______________________________________________<br>
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