Here’s a lateral take on this. A 500 gallon poly water tank is far cheaper than the batteries needed to fill it.
Years ago I rigged up a seasonal pump system for a man who had two ponds on his property. The lower one was well fed by a spring but the upper one wasn’t. I used a 200 watt DC piston pump and a couple of modules with a linear current booster. A couple of breakers but no batteries. It just chugged away quietly all (moderately sunny) day, filling the upper pond. Using a positive displacement pump is key for minimizing power requirements. At 300 feet that’s about 125 psi, which is not out of line for a piston pump. Fill a big poly tank and pressurize it with a small DC diaphragm pump if necessary. Simple, efficient, cheap. Hilton Dier III Renewable Energy Design Missisquoi River Hydro LLC _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org 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 There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
