Magnets act on iron and other ferrous metals. Calcium carbonate
[limestone] is a principal cause of "hard" water. It is not a
ferrous metal.

I think the idea of using a magnet to try to change the
properties of calcium carbonate dissolved in water smells like
male bovine excrement.

Paul wrote:
Anyone with an opinion or experience on magnetics to solve hard water
problems? Is this a bunch of bull**** or what?

-Paul