I am trying to figure out my plumbing system right now and am torn between using a slower dc pump or a grundfos. I found a used 5 gpm grundfos for sale online for 300 bucks, which is a 220 3 phase 2 wire pump. Does this need to be run with a VFD and a transformer, or just a transformer? I am still pulling my hair out over whether to do a gravity tank or pressurize and run into a large pressure tank. I am also trying to figure out how much more power production I would need to go with a higher powered pump. I currently have about 400 watts into 4 t-105s with a trace c-40 charge controller. Can't put too many more panels on the charge controller...
I have a Xantrex 1500 watt inverter, which obviously is looking kind of small. Much better than the truckstop inverter I've used for the last few years, though, right?
I have a honda 2000 generator.
The appeal of adding production is that the power could be used for other things besides pumping water, such as refrigeration. I am attracted to gravity feed because of the ability to control/minimize when the well pump operates, but discouraged because of the infrastructure work required. Tanks aren't free, either, and trenches don't dig themselves.
I've enjoyed all the good advice on other threads. Thanks for all the knowledge and effort put in on this site.