At one time Dankoff (the pre-Conergy Dankoff Solar) handled the the Lorentz submersibles. They dropped them after about a year because of failures.
Now, that was several years ago and Lorentz may have gotten their problems fixed, but we have felt more comfortable with the Grundfos. .................................................................................................. Northern Arizona Wind & Sun - Electricity From The Sun Since 1979 Solar Discussion Forum: http://www.wind-sun.com/ForumVB/ .................................................................................................. ----- Original Message ----- From: Jeff Lahl To: 'RE-wrenches' Sent: Sunday, March 07, 2010 6:48 PM Subject: Re: [RE-wrenches] Pump choice - Grundfos or Lorentz;distributers of Lorentz Bob, Innovative Solar is one company that can help you with the Lorentz pumps. 866-856-9819 We're currently ordering 3 pump systems for West Africa and ended up using both Grundfos SQF and Lorentz. We've had good luck with Grundfos in the past but our needs in some cases exceeded what the SQF could pump so will be trying Lorentz for the first time. I was hesitant after hearing some unfavorable things about Lorentz but have been told that the latest versions have the problems worked out. I'm afraid I don't recall what the original problems were supposed to be but I'm sure others on the list will contribute their experiences. It will be interesting to see how both systems hold up in the same environment. Another company to check out for a full range in pumps is Sunpumps. www.sunpumps.com 800 370-8115. Good luck, Jeff Jeff Lahl | Project Director Solar Electric Light Fund | www.self.org p 808-874-5706 f 808-874-5706 ________________________________ energy is a human rightT Change a life. Change the world From: [email protected] [mailto:[email protected]] On Behalf Of Bob Clark Sent: Sunday, March 07, 2010 7:22 AM To: [email protected] Subject: [RE-wrenches] Pump choice - Grundfos or Lorentz; distributers of Lorentz Wrenches: I know from searching the archives that the virtues of Grundfos vs. Lorentz pumps have been discussed briefly, but seemingly not lately. If I am repeating something, please direct me to previous discussion threads. Stock watering situation: Total Dynamic Head = 212 feet; 48.5 degrees north latitude; need 1250 gallons per day in July and August; can pump a maximum of 3 gallons per minute from a developed spring without drawing down the water level; 2300 gallons total water storage capacity (1700 gallon tank and 600 gallon trough). Going to try to not use batteries. I think it can just barely be done with the allowable flow. I am looking at possibly using the Lorentz Solar Pump PS600. It appears to be quite versatile which is important for fine-tuning this particular stock watering system. Any comments or suggestions about this pump (suitability, reliability, cost) vs. the Grundfos 6 SQF-2? Distributers for the Lorentz pump? Bob Clark SolarWind Energy Systems, LLC ------------------------------------------------------------------------------ _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] 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
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