Thanks, t. I guess my question is if the water from this source is or was supplied by use of a pump then that would have required some initial drilling to reach the water source. How does he know that it is a spring and not a shallow well?
We live on the side of a steep hill and between two deep ravines. Near the top of the hill there are three springs that pop out of the side of one of the two ravines. Just below the springs a small 6' wide by 4' tall concrete dam was constructed across a narrow area of the ravine. The 1.5" black pipe is in the center of a small pond formed by the dam. The pond is about 400' uphill from the well house and waterfall. This was the original water supply to the house. Inside the well house the spring pipe keeps a gravity tank full and the overflow discharges to the waterfall. A shallow well pump tied to the gravity tank supplied pressurized water to the house fixtures. Anytime water was used in the house the flow over the water fall would be reduced. The flow could completely stop if water in the house was used long enough. The original owners also had a small distiller installed with a separate line for drinking water.
When we bought the house it couldn't be sold without a well so the owner had a well driven and installed a submersible pump and pressure tank. The well was extremely low producing so the well driller suggested we keep the spring water system for dirty water and use the well for drinking water, with 3 kids we thought that was a good idea. So all the sinks in the house were tied to the well. The shower, washer, toilets etc. were tied to the spring. That meant we had 2 water heaters to maintain, one for each system. As soon as the last kid moved out, I switched everything over to the well and only use the spring for outside water.