Roy has an excellent suggestion...if you have constant AC power available.
In fact, if you use the Grundfos SQE models, they come with a constant-pressure controller so you don't need a large pressure tank, and it also has dry-run protection features. Brian Teitelbaum AEE Solar -----Original Message----- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Roy Butler Sent: Wednesday, May 07, 2014 3:28 PM To: RE-wrenches Subject: Re: [RE-wrenches] Low flow high head pump I would recommend using a Grundfos SQ 120 or 240 volt AC pump on a timer. Because you mention using a conventional pump, I assume that there's AC power available? The SQ line is very efficient and has no surge at start up. And it's a lot less expensive than the SQF line of pumps. Roy Butler NABCEP Certified Solar PV Installer(r) NYSERDA eligible PV & wind installer IREC Certified Master Trainer(tm) for Small 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 10th Annual Small Wind Conference A Gathering of Installers, Manufacturers, Dealers, & Distributors June 17 and 18, 2014 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 5/7/2014 5:28 PM, All Solar, Inc. wrote: > Static level is 200 feet > Well produces ~1 gallon per minute. 4 inch casing. > 200 gallons per day requirement > > Jeremy Rodriguez, > President > > All Solar, Inc. > 1463 M > Penrose Colorado 81240 > 719-372-3808 office > 719-372-3804 fax > www.asolarelectric.com > > Sent by Jeremy's iPhone. Sorry for typos and shorthand! > >> On May 6, 2014, at 6:43 PM, Brian Teitelbaum <bteitelb...@aeesolar.com> >> wrote: >> >> Hi Jeremy, >> >> PV-direct pumps operate at variable speeds depending on the amount of >> sunlight and time of day, so a GPM figure is not very helpful in sizing the >> pump. It's useful info if the water source will not produce more GPM, since >> you don't want to over-pump the source, but it's not enough info to do >> proper design. >> >> What are you pumping out of? Well, pond, spring box? >> >> How many gallons per day (GPD) do you need delivered, on average? GPD is a >> much more useful figure for sizing PV-direct pumps. >> >> Is that "600 ft" of head measured from the standing water level to the top >> of the storage tank, as just elevation change and not distance? >> >> A 600 foot-deep well might actually have a standing water level at 300-400 >> ft. Even if the pump is set at 600 ft, it only takes energy to lift water >> from its standing level, so your head figure would be inaccurate if that is >> the case. >> >> If it's a well, what is the diameter of the well casing? >> >> What are the peak sun-hours at the site during the darkest time of year that >> the water is needed? >> >> There are lots of other questions to ask, but these should help a lot. >> >> Brian Teitelbaum >> AEE Solar >> >> >> -----Original Message----- >> From: re-wrenches-boun...@lists.re-wrenches.org >> [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of All Solar, >> Inc. >> Sent: Tuesday, May 06, 2014 5:08 PM >> To: re-wrenches@lists.re-wrenches.org >> Subject: [RE-wrenches] Low flow high head pump >> >> Hi all, >> Any recommendations for a low flow, high lift pump, PV direct pump. >> 1 GPM @ 600 ft of head. Maybe a conventional pump on a timer? >> >> >> Jeremy Rodriguez, >> President >> >> All Solar, Inc. >> 1463 M >> Penrose Colorado 81240 >> 719-372-3808 office >> 719-372-3804 fax >> www.asolarelectric.com >> >> Sent by Jeremy's iPhone. Sorry for typos and shorthand! >> _______________________________________________ >> List sponsored by Home Power magazine >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change email address & 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 >> >> Change email address & 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 > > Change email address & 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 Change email address & 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 Change email address & 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
