Hi Guys. I have been testing pumps from China for about a year. I recently got a Hober that will pump 400 feet. It has a 3-phase brushless motor and a helical rotor. I will start testing it soon. It looks really good, as do the others I am testing. They are all excellent looking knockoffs of Grundfos and Lorentz. David Katz
On Sat, Jan 5, 2019 at 9:06 AM William Dorsett <wmdors...@sbcglobal.net> wrote: > Jay, thanks for your response. Do you have or anyone close, actual > experience with Hober? At 230 ft, plus as Dan suggested, we have to add > the head to the storage tank. At that depth ShurFlo would run through > diaphragms quickly and in a place where a bicycle represents middle class, > that cost could be unsustainable. Centrifugal pumps really bog down at that > depth, even from 270 gals per day it’s going to take quite a few watts to > spin water to the surface. It’s not obvious that Hober has pump curves > available on their website, and very little about their pumps. > > > > Again thanks. > > > > Bill Dorsett > > “Start where you are. Use what you have. Do what you can” Arthur Ashe > > 1715 Leavenworth > > Manhattan, KS 66502 > > www.fhreec.org > > > > 785/539-1956 Office > > 785/564-2583 Cell > > wmdors...@cox.net > > > > *From:* RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> *On > Behalf Of *jay > *Sent:* Wednesday, January 02, 2019 10:19 PM > *To:* RE-wrenches <re-wrenches@lists.re-wrenches.org> > *Subject:* Re: [RE-wrenches] Hober Pumps Reviews? > > > > Hi William > > > > I would steer you way way clear from the Shurflo 9300. It’ll break, they > won’t have parts and it’ll never get rebuilt. > > > > The Hober uses the most common international design which is a DC to AC > 3phase variable speed pump controller, basically an inverter. > > It then runs any 3 phase pump within its wattage parameters. These pumps > are everywhere, cheap, pretty efficient and extremely reliable. There are > many many of these inverters/controllers on the market. > > > > It is really hard to get good data on how to size the PV watts to pump > watts using these inverters. Unlike a DC positive displacement pump which > will still pump but more slowly if low DC input, the centrifugal pump’s > output drops off dramatically if you get below its operating window. And > that window is dependant on the pump specs vs flow vs dynamic lift. > > So need more water, add more PV, double PV watts to running watts as a > bare minimum. And specify a pump that is pumping in the bottom of the > curve instead of near the top helps to allow it to produce better during > lower PV watts input. > > > > Good luck, > > > > Jay > > > > Peltz power > > > > > > > > > > > > > > On Jan 2, 2019, at 4:44 PM, William Dorsett <wmdors...@sbcglobal.net> > wrote: > > > > Happy New Year Wrenches From a young lady who is trying to bring clean > water to a village in Uganda: > > “ This is Rosanna Bauman from Garnett. I'd talked to you about 2 > years ago about solar pumps for our friends in Uganda. We installed the > solar panels but are just now getting the money saved up for the > well-drilling. We have clean water located 75 meteers below, no rock. > Looking at a Shur-flo or a Hober. We can get the Hober shipped direct from > China to Uganda DHL, plus it's about $200 less. However, we would like > some advice as to their reliability. We want something reliable. > > Have any of your Solar Wrenches used or heard of this company? Looking at > using a 3000 liter/day pump to pump 1,000 liters, since it will be directly > tied to solar power, no battery back-ups. > > You're welcome to call me if you have questions! > > Thanks! > > Rosanna Bauman” > > > > Thanks for your thoughts > > Bill Dorsett > > “Start where you are. Use what you have. Do what you can” Arthur Ashe > > 1715 Leavenworth > > Manhattan, KS 66502 > > www.fhreec.org > > 785/539-1956 Office > > 785/564-2583 Cell > > wmdors...@cox.net > > > > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > -- David Katz Sent from Gmail Mobile
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