Cletus Albrite

I built a small dugout as the first building on my property. I didn't want an uphill patio, which would have been on the north side. So, I did something I had never seen done. I turned the building having a corner post uphill instead of a flat wall. 10 by 10 structure for 100 square feet of space. Instead of a 10-foot walls running west to east and north to south, the walls run north to west and north to east. Roof slopes to the west and east. I did use a white oak post in the north corner that is buried 4 feet that is 22 inches across. Everything drains around the west and east side and after a year seems to be working great.

If you look around you can still find it. I used lands of Oklahoma, just go to lands of (which ever state you are interested in) plenty of filters to weed out properties you don't want.
I purchased 10 acres of woods for $12,500, title insurance and survey included. Oak, black walnut, and hickory trees and a wet weather creek. Plenty of rain in eastern Oklahoma but cool summers are hard to find.

I have r-13 in the walls. The floor is just soil that was rototilled and cement added then moistened and tamped, about 6 inches thick. The roof is r-19 inside and 2 inches of salvage foam over the osb outside with tin on top. This is my shed/workshop I'm living in until I finish building my ferrocement/aircrete dome.

Yes, think blowing air over a water cooled radiator. I am going to add a porch on front of my shack and thought why not bury my extra 2000 gallon water tank then build the porch over top. Fill it with extra rainwater and try to cool things off a bit. But on the cheapest budget I can.

I live in a very humid area, so I didn't want to do evap cooling. I understand about heating or burning up the motor and pump. I was thinking about doing as a trail run and if it worked adding a charge controller and battery. At 10 foot of depth,  last summer 100 degree temps, the ground temp was 65 degrees.

I am living off grid in a 10 by 20 foot shack I built, with minimal solar and no cooling. I am trying to rig up enough cooling to take the edge off with 100 degree weather coming.

I have seen a video where a guy was running a 80 watt 12 volt automobile radiator fan, and a low wattage 12 volt water pump, using a 120 watt solar panel without a battery or charge controller. Just a pump and fan wired direct to a solar panel. When a cloud passes the fan and water pump slow down and then return to full strength in full sunlight. He was pumping water from a 5 gallon bucket with a couple of ice blocks, to a transmission cooler with the fan blowing through the tranny cooler. He was getting great results.

Usually in geothermal systems 8 to 10 foot ditches are dug and water line is placed forming a closed loop system. I was thinking about burying a 2000 gallon water tank hoping the ground temps would help keep the water cool instead of trying to dig 400 foot of trenches to lay water pipe in. I don't know if a water tank would have enough surface area to dissipate enough heat. But a 3/4 inch water pipe can't be alot of surface area either. I would have much more cool water to draw from.
Since this system would only run when the sun was hitting the solar panel using a 3 gallon per minute pump, say 6 hours of sun during the summer that just over 1000 gallons pumped. So half of the water would be cycled every day with 18 hours between use to cool down for another 6 hour day of use.

Does anyone think this might help cool 200 square feet enough to help or am I missing something. I have a extra 200 gallon tank and a 150 watt solar panel that are currently unused. Let me know if this goes against the laws of physics or something I'm missing. Thanks.