Jami McBride wrote:So the question becomes can one of these floats shut off the water/pressure from a pond?
Municipal pressure is enough to push water up a few stories, so unless the pond is situated way upslope of the tank, it probably isn't too much.
The water itself might be a problem, though. The valve might clog or corrode, depending on how it's made. Some filtration, and in special circumstances maybe some means of hardening the water, might be a good idea.
"the qualities of these bacteria, like the heat of the sun, electricity, or the qualities of metals, are part of the storehouse of knowledge of all men. They are manifestations of the laws of nature, free to all men and reserved exclusively to none." SCOTUS, Funk Bros. Seed Co. v. Kale Inoculant Co.