Kent, It would only be off if the tanks were full. Why? Gary _____
From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kent Osterberg Sent: Monday, November 08, 2010 4:58 PM To: RE-wrenches Subject: Re: [RE-wrenches] Grundfos Gary, Any chance that the pumping system is off during the winter? Kent Osterberg Blue Mountain Solar Gary Gordon at SYV Solar wrote: Wrenches, More details on the Grundfos failures: 1st failure 11 SQF-2 w/ 204ft TDH 2nd failure 6 SQF-2 w/ 220ft. TDH 3rd failure 6 SQF-2 w/ 253ft. TDH All controllers were displaying F3 failures, there was voltage at the well head. Only one replaced so far and seems to work fine. Any ideas or similar problems? Gary Gordon Santa Ynez Valley Solar P. O. Box 688 Santa Ynez, CA 93460 805 688-1213 g...@syvsolar.com _____ From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mike Nelson Sent: Saturday, November 06, 2010 10:07 AM To: RE-wrenches Subject: Re: [RE-wrenches] Grundfos Doug, Thanks for the feedback. I have to install the monoflo, because it was purchased 2 summers ago, but the customer didn't have the site work done to install the pump. This summer the site work was finished and now the customer is ready to have the system installed, so wish me luck! DC Power is getting out of the pumping biz, so is Wholesale solar up north, hopefully Solar Depot will remain in it. Our only other option is to go through the plumbing supply houses. I hear the bugs are being worked out of the Lorentz pump line, anyone have any experience with them? Mike Nelson MD Electric & Solar Gualala, Ca. On Sat, Nov 6, 2010 at 7:45 AM, Doug Pratt <dmpr...@sbcglobal.net> wrote: Mike, from another Mendo native, don't do the Monoflo. DC Power is getting out of the pumping biz, and we're the only Monoflo distributor in the US. Our experience with Monoflo hasn't been good. We've seen a number of pump failures recently, support from the manufacturer is pretty thin, and troubleshooting in the field is poorly developed and documented. Basically it's. pump not working? Try plugging in a new controller. Still not working? Plug in a new pump. Dealers don't keep expensive pumps on the shelf in case of breakdowns, so repairs usually end up taking weeks. Not good for dealer/customer relations! DC Power is getting out of water pumping because we just don't have the technical bandwidth anymore. We're being pressed so hard by the rapidly-expanding grid-tie market that our tech support crew is getting loved to death. There's no time. I'm sorry to see it go, I found water pumping projects challenging and interesting, but the tech cloning project has hit some snags. >From a sales perspective, the Grundfos SQ Flex was the best of the lot. We heard the fewest problems from them, and those problems were usually on the surface (the CU200 control). Doug Pratt DC Power Systems From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mike Nelson Sent: Friday, November 05, 2010 5:37 PM To: RE-wrenches Subject: Re: [RE-wrenches] Grundfos I have also installed several Grundfos SQ Flex submersible well pumps, and had trouble with them, primarily with the control systems, the low water shut off sensor has failed on several pumps, and the CU200 control boxes have failed. The pumps themselves have held up so far, and seem to be very efficient. I wish there were more solar direct well pump options, I've tried the ETA pumps, the Sunpumps (which are great for low head, low flow) and am about to try a Monoflow. Any other thoughts? Mike Nelson MD Electric & Solar Gualala Ca. On Fri, Nov 5, 2010 at 4:40 PM, Gary Gordon at SYV Solar <g...@syvsolar.com> wrote: Wrenches, I set up the PV arrays for six Grundfos SQ Flex submersible well pumps on a cattle ranch. The first three have failed (in exact order of installation) in about a year. Anyone else experiencing similar problems? I had always heard great things about their equipment, is it time to look elsewhere? Where? Gary Gordon Santa Ynez Valley Solar P. O. Box 688 Santa Ynez, CA 93460 805 688-1213 g...@syvsolar.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 <http://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 <http://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
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