I want to put an open loop heat pump system in my house, however I didn't want to run my well pump all the time to do it. Approximately 80 to 100 ft from my new home location is a spring fed cistern (large concrete box that holds about 2000 gallons of water. The water flows into it year round at a rate of about 1.5 to 1.7 gallons per minute. The deed to the property shows that this spring has been there for approx. 150 years, so I don't think it is going to dry up soon.
My question is: Is the 2000 gal. resevoir with a flow of 1.5 gals a minute into it enough water to handle 8 tons of geothermal open loop system? Also, how small of a pump could you get away with if you only have to raise the water up about 20 ft. to get it to the system, instead of using the large well pump to pull it from deep in the ground?
My question is: Is the 2000 gal. resevoir with a flow of 1.5 gals a minute into it enough water to handle 8 tons of geothermal open loop system? Also, how small of a pump could you get away with if you only have to raise the water up about 20 ft. to get it to the system, instead of using the large well pump to pull it from deep in the ground?