Off grid water well
Starting to think I am done with them.
I already spent $900 getting the old irrigation pump pulled out.
Now I'm mostly concerned with just getting the water to a non pressurized surface tank.
So far this is what I have to work with:
My little battery.
Morningstar tristar mppt, only 15 amp. Probably add a 2nd one.
A 16 inch bore diameter well. The well depth is 120 feet. With water at 108.
I had the well cleared out and tested it did about 100gpm for 90 minutes.
It's a big well with a 12 feet of water in it so I can put just about anything I want down there.
7.3kw worth of used 295w poly 72 cell panels.
(Obviously I won't need any where near 7.3kw, maybe 3 or 4 of those 295w panels at the most)
I would like to install 2 pumps for redundancy. One that can run 24v off the battery through the charge controller. Or more likely a relay slaved through the charge controller. This will allow me to pump some water any time.
A second pump that can run straight off solar panel voltage. Which will probably be around 36 or so volts at max power and maybe 42v ocv (the panels are rated for 44.5v ocv but I have yet to observe more than 42. This will pump water and fill the tank incase the battery gets drained or my cc fails. I also plan to use more water during the day.
I'm thinking the 2 DC pumps will just be little cheap submersible units.
Then incase of emergency, say lightning takes out my pumps or something a all plastic pneumatic diaphragm pump for the non electric backup. Something like a husky pump made by graco and wheel my gasoline powered air compressor out to the well house.
Then I will use 12v RV diaphragm surflo and Delavan pumps to pressurize the water.
I would also like to dabble in rain water catchment. I have our old spa in a box portable hot tub, which I spray foamed and made nonportable. It holds about 250 gallons.
What would you do?
Solar hybrid gasoline generator, 7kw gas, 180 watts of solar, Morningstar 15 amp MPPT, group 31 AGM, 900 watt kisae inverter.
Solar roof top GMC suburban, a normal 3/4 ton suburban with 180 watts of panels on the roof and 10 amp genasun MPPT, 2000w samlex pure sine wave inverter, 12v gast and ARB air compressors.