Unless it is a very large offgrid system I agree with Brad. Also if the electrics fail, are they underground?
I would typically pump to a tank and then drain to a surface pump and pressure tank/switch at the home. Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ > Dana, > > For off grid you may not want to use the constant pressure pumps. They > will > run a little bit, a lot of the time to keep the pressure constant. I think > it might be more efficient to use a pressure switch and regular pressure > tank. Anyone with experience in this? > > Brad > > On Wed, Apr 26, 2017 at 8:32 PM, Dana <d...@solarwork.com> wrote: > >> My well driller-well pump guy is offering Sta-Rite pumps manufactured by >> Pentair [as in Pentair water filtration they seem to be buying lots of >> water related companies]. >> >> I am curious as to feedback on these, has anyone used them? >> >> Soft start, digital controls, easy programming, stainless steel, 3-year >> warranty, & includes a pressure transducer, so no pressure switch >> required. >> >> My pump guy says he has only had 1 issue on 1 pump in serval hundred >> installed. Almost sounds too good to believe. >> >> A bit less $ retail than a Grundfoss but supposedly a whole lot more >> reliable. >> >> A 1 HP motor 20 GPM pump draws 4.7 Amp/240 VA as it hits a 60 psi cutout >> [1,128 watts peak] though I will set to 30/50 psi. >> >> >> >> Comments please⦠>> >> >> >> >> >> ------------------------------------------------------------ >> ---------------- >> >> Dana Orzel Great Solar Works, Inc. >> >> *208.721.7003 <(208)%20721-7003> >> d...@solarwork.com >> <d...@solarwork.com>* >> >> Idaho Contractor - # 028765 Idaho PV # 028374 >> >> NABCEP # 051112-136 www.solarwork.biz >> >> *"Responsible Technologies for Responsible People since 1988" * >> >> *P* Please consider the environment before printing this email. >> >> >> >> >> >> _______________________________________________ >> 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 > > Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail offgridso...@sti.net text 209 813 0060 _______________________________________________ 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