Re: [RE-wrenches] Booster Pump/Slowpump information

[Roy Butler]

Thank you Allan, this is really good information. I have about 35 of these in the field at this time and I'll need this info soon, I'm sure! 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 Although no trees were killed in the sending of this message, a large number of electrons were terribly inconvenienced. On 10/20/2011 4:10 PM, Allan Sindelar wrote: Wrenches: This information is important to those companies that have customers with Dankoff/Flowlight Booster Pumps and Slowpumps. These pumps use DC motors to drive rotary vane positive displacement pump heads made by Procon. Windy Dankoff developed these pumps about 30 years ago and I think thousands have been sold. Other than the quirkiness of their need for fine (10 micron) filtration on the intake side, and the relative unreliability of the optional dry run protection thermal snap switch, the pumps are exceptionally well-made and long-lasting, in my experience. Early (before around 1998) pumps were sold under the "Flowlight" name; then under "Dankoff Solar Pumps" name until Conergy bought Dankoff around 2004. The pumps had Conergy's name on them until around two years ago, when Conergy closed its sales and distribution of water pumping, solar thermal, and wind products. Innovative Solar bought the water pumping line and restored the "Dankoff Pumps" name. Innovative Solar became Argand, and changed their distribution model in order to not compete with their dealers (attaboy!); Dankoff Pumps, while owned by Argand, is wholesale only; new dealers must place a minimum stocking order. The pumps continue to be manufactured here in Santa Fe by the same folks that have made and serviced them for years, and quality and support remain high. Dankoff Pumps website is currently www.Dankoff-Pumps.com. Note the hyphen; www.Dankoffpumps.com takes you to a (currently closed) online store, with referral links to Dankoff Pumps for dealers who want to become dealers. Dankoff Pumps will soon be either moving to or adding www.DankoffSolarPumps.com as well, I understand, but this hasn't happened yet. Contact Dankoff Pumps at m...@dankoff-pumps.com. The Procon heads wear out. New replacement heads are available through Dankoff Pumps (and probably other sources as well). However, the heads are rebuildable, and the cost is much less than new. We always ask customers for their old pump heads in exchange for new or rebuilt ones. The rebuilder is Edco Service Center, 8220 Belvedere Ave., Suite F, Sacramento, CA 95826; 916-454-1445. The contact person there is Sandie, san...@edcodistributing.com. Recently we learned some critical information related to pump rebuilding: the heads may rebuilt in many configurations, and it's essential to specify that the pump heads must be for potable water applications. This has to do with the amount of lead in various internal components. According to Sandie at Edco, you must specify a 114E head. According to Matt at Dankoff Pumps, the full designation is 114E240F11XX for the Booster Pump head and this should be specified in full. All original Booster Pump and Slowpump heads were acceptable for potable water; however, due to a mixup of indeterminable cause, we were recently sent a set of 104 rebuilt heads, which aren't (according to the State of California) suitable for potable applications due to lead content. To their credit, Edco will re-rebuild these heads to potable standards at no cost to us save shipping, but this seemed to me to be a good opportunity to share this information widely with other water pumping Wrenches. 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 _______________________________________________ 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