Re: [RE-wrenches] low head/low cost solar pump
Mac, It probably doesn't pass the low cost hurdle, but this sounds like the perfect situation for a Dankoff Suncentric pump. Kent Osterberg Blue Mountain Solar, Inc. www.bluemountainsolar.com t: 541-568-4882 On 2/24/2012 7:49 AM, mac Lewis wrote: Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks -- Mac Lewis * Yo solo sé que no sé nada. -Sócrates * ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] low head/low cost solar pump
Mac, you need to be more specific about your needs and budget. Is a Shurflo 9300 too expensive at $800+? It can be set up to run on a single 12V module at about 1/2 gpm, all day; at 1/2-speed it'll go for about 3 years before needing parts replaced. Is the smallest Sunrotor too expensive? What's the application? Could a Dankoff Slowpump be hung in a dug well? One of those will last for years or decades if the filters are kept clean, and can run on as little as 25 watts of PV. Water pumping is the most application-specific use of solar that I know. The answer is always "It depends". And you haven't given us enough information to help you. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 2/24/2012 8:49 AM, mac Lewis wrote: Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks -- Mac Lewis "Yo solo s que no s nada."-Scrates ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] low head/low cost solar pump
Hi Mac; I would be looking at something like the Shurflo 2088 series and a Linear Current Booster, with a check valve on the intake if you can't mount the pump below the water level. 75-100 watts of PV should perform just fine with that. Dan Fink, Executive Director; Otherpower Buckville Energy Consulting Buckville Publications LLC NABCEP / IREC accredited Continuing Education Providers 970.672.4342 (voicemail) On Fri, Feb 24, 2012 at 8:49 AM, mac Lewis maclew...@gmail.com wrote: Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks Mac Lewis ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] low head/low cost solar pump
Mac, Sounds like the Shurflo 2088 series pump that Dan mentioned would fit the bill. We've used them PV direct with good results, just be sure to use a PV module with a Voc that's not too high for the pump. Roy Butler NABCEP Certified Small Wind Installer NABCEP Certified Solar PV Installer NYSERDA eligible PV wind installer Four Winds Renewable Energy, LLC 8902 Route 46, Arkport, NY 14807 607-324-9747 www.four-winds-energy.com Join us at the 8th Annual Small Wind Conference A Gathering of Installers, Manufacturers, Dealers, Distributors June 12 and 13, 2012 in Stevens Point, Wisconsin www.smallwindconference.com Although no trees were killed in the sending of this message, a large number of electrons were terribly inconvenienced. On 2/24/2012 11:55 AM, mac Lewis wrote: Hi Wrenches, Let me be a little more specific about this site. Potential client has a pond that he would like to move water to his garden. This pond is about 10 vetical ft below his garden, and the garden is about 200' horizontal ' away. He has a little shack about 20' from the pond that we will mount the solar. He would like to flood irrigate slowly throughout the day and just move a flexible hose around. As far as budget, client hasn't been real specific. I have looked at the Shurflow 9300 but was hoping for something that would operate at a higher flowrate in exchange for not having the high head capability (and perhaps less expensive). It does need to be PV direct capable. Thanks On Fri, Feb 24, 2012 at 9:15 AM, Dan Fink danbo...@gmail.com wrote: Hi Mac; I would be looking at something like the Shurflo 2088 series and a Linear Current Booster, with a check valve on the intake if you can't mount the pump below the water level. 75-100 watts of PV should perform just fine with that. Dan Fink, Executive Director; Otherpower Buckville Energy Consulting Buckville Publications LLC NABCEP / IREC accredited Continuing Education Providers 970.672.4342(voicemail) On Fri, Feb 24, 2012 at 8:49 AM, mac Lewis maclew...@gmail.com wrote: Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks Mac Lewis ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Mac Lewis "Yo solo s que no s nada."-Scrates ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] low head/low cost solar pump
Yes, with the additional details you provided I would look seriously at the Shurflo 2088. An LCB will allow it to work on overcast days. DAN FINK On Fri, Feb 24, 2012 at 10:05 AM, Roy Butler r...@four-winds-energy.com wrote: Mac, Sounds like the Shurflo 2088 series pump that Dan mentioned would fit the bill. We've used them PV direct with good results, just be sure to use a PV module with a Voc that's not too high for the pump. Roy Butler ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] low head/low cost solar pump
Mac, That helps. My best suggestion would be a Dankoff Solar Slowpump. The SunCentric solar centrifugal would be ideal if the volume of water desired was greater. Mount the pump close to and above the highest pond surface level, and use the optional 30" filter and foot valve package. Pick a model and module size to match his desired GPD. You can add an LCB but it's not necessary, given the current low cost of just oversizing the module. Specs on the Slowpump are at http://dankoff-pumps.com/dp/wp-content/uploads/2011/11/slowpump1129.pdf, or via http://dankoff-pumps.com/dp/?page_id=6. This pump is for summer use only, as it's not freeze-tolerant. Simple, long-lasting, reliable, rebuildable, domestic, proven. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 2/24/2012 9:55 AM, mac Lewis wrote: Hi Wrenches, Let me be a little more specific about this site. Potential client has a pond that he would like to move water to his garden. This pond is about 10 vetical ft below his garden, and the garden is about 200' horizontal ' away. He has a little shack about 20' from the pond that we will mount the solar. He would like to flood irrigate slowly throughout the day and just move a flexible hose around. As far as budget, client hasn't been real specific. I have looked at the Shurflow 9300 but was hoping for something that would operate at a higher flowrate in exchange for not having the high head capability (and perhaps less expensive). It does need to be PV direct capable. Thanks On Fri, Feb 24, 2012 at 9:15 AM, Dan Fink danbo...@gmail.com wrote: Hi Mac; I would be looking at something like the Shurflo 2088 series and a Linear Current Booster, with a check valve on the intake if you can't mount the pump below the water level. 75-100 watts of PV should perform just fine with that. Dan Fink, Executive Director; Otherpower Buckville Energy Consulting Buckville Publications LLC NABCEP / IREC accredited Continuing Education Providers 970.672.4342(voicemail) On Fri, Feb 24, 2012 at 8:49 AM, mac Lewis maclew...@gmail.com wrote: Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks Mac Lewis ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Mac Lewis "Yo solo s que no s nada."-Scrates ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine
Re: [RE-wrenches] low head/low cost solar pump
Mac, The cheapest pump to do this job is the LVM Amazon, which is made in England, will pump 3 or 4 GPM at 10 feet of head and costs around $70. They are made to run on a 12 volt battery and cannot handle more than 14 volts, so a small battery and controller are required. You can use a low cost regulator and a relay powered by the module to only run the pump when the sun is shining. If you use a Surflo 2088, use the 24 volt version with a nominal 12 volt 36 cell module array direct. This way the pump never sees too high of a voltage. It will operate at 17 to 18 volts, pump slightly less then spec says at 24 volt, but since it is positive displacement it will pump fine at the low voltage. David Katz CTO Founder AEE Solar Inc P: 707 825-1200 F: 707 825-1202 dk...@aeesolar.com www.aeesolar.com DISCLAIMER: This communication, along with any documents, files or attachments, is intended for the use of only the addressee and contains privileged and confidential information. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of any information contained in or attached to this communication is strictly prohibited. If you have received this message in error, please notify the sender immediately by e-mail reply and destroy the original communication and its attachments without reading, printing or saving in any manner. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of mac Lewis Sent: Friday, February 24, 2012 7:50 AM To: RE-wrenches Subject: [RE-wrenches] low head/low cost solar pump Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks -- Mac Lewis Yo solo sé que no sé nada. -Sócrates ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] low head/low cost solar pump
Dave and Mac, The 2088 would certainly work as well if the desired flow is low enough. They are rated 2.8 gpm at open discharge, but that goes down quickly to under 2 gpm at pressure. Your app is close to open discharge, but running 12V array direct would likely reduce output to (17/26 X 2.8 =) about 1.8 gpm max. Is that enough? Certainly cheaper; while designed for intermittent duty as a pressurizing pump, it would certainly last longer at lower voltage and speed. I have never tried running one all day, to know how long it would last. It's somewhat rebuildable (order a "diaphragm/drive kit" and a "valve kit" for the owner if you go this route; replacement motors aren't available). Cheap enough, too, to be considered disposable; just not my preferred route to advise a customer. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 2/24/2012 10:21 AM, David Katz wrote: Mac, The cheapest pump to do this job is the LVM Amazon, which is made in England, will pump 3 or 4 GPM at 10 feet of head and costs around $70. They are made to run on a 12 volt battery and cannot handle more than 14 volts, so a small battery and controller are required. You can use a low cost regulator and a relay powered by the module to only run the pump when the sun is shining. If you use a Surflo 2088, use the 24 volt version with a nominal 12 volt 36 cell module array direct. This way the pump never sees too high of a voltage. It will operate at 17 to 18 volts, pump slightly less then spec says at 24 volt, but since it is positive displacement it will pump fine at the low voltage. David Katz CTO Founder AEE Solar Inc P: 707 825-1200 F: 707 825-1202 dk...@aeesolar.com www.aeesolar.com DISCLAIMER: This communication, along with any documents, files or attachments, is intended for the use of only the addressee and contains privileged and confidential information.If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of any information contained in or attached to this communication is strictly prohibited. If you have received this message in error, please notify the sender immediately by e-mail reply and destroy the original communication and its attachments without reading, printing or saving in any manner. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of mac Lewis Sent: Friday, February 24, 2012 7:50 AM To: RE-wrenches Subject: [RE-wrenches] low head/low cost solar pump Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks -- Mac Lewis "Yo solo s que no s nada."-Scrates ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings:
Re: [RE-wrenches] low head/low cost solar pump
Hi Mac I would look into a small dc bildge pump. Check west marine Jay Peltz power Sent from my iPhone On Feb 24, 2012, at 7:49 AM, mac Lewis maclew...@gmail.com wrote: Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks -- Mac Lewis Yo solo sé que no sé nada. -Sócrates ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] low head/low cost solar pump
Jay, I wouldn't. Years ago Windy offered a line of Rule bilge pump kits with modules for array-direct fountain and landscaping apps. He called it the SunDeLight, in Windy's typically cute naming fashion. We sold a few. He gave up after a few years. The pumps are mostly plastic and designed for intermittent duty (it's a bilge pump, not a sinking ship pump). In the continuous operation of array-direct use, too many of them wore out before the two-year warranty was up. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 2/24/2012 12:15 PM, Jay Peltz wrote: Hi Mac I would look into a small dc bildge pump. Check west marine Jay Peltz power Sent from my iPhone On Feb 24, 2012, at 7:49 AM, mac Lewis maclew...@gmail.com wrote: Hi wrenches, I am looking for a relatively low cost solar pumping system. The system has about 10 ft of elevation head and he just wants to water his garden which is about 200' away horizontally. It can either be a submersible pump or a pump that can produce some suction. Any experience with this? Everything I've looked at thus far has been overkill and/or fairly expensive. Thanks -- Mac Lewis "Yo solo sé que no sé nada." -Sócrates ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
