What is Scale?
Scale is the concentration of minerals (often calcium and magnesium) that form when water is heated and the minerals precipitate from the water and collect on the surfaces of pipes, plumbing fixtures and equipment that uses water. Water with a high mineral content is considered hard at 7 grains per gallon (gpg) and does not have to be truly hot to form scale. Even slight changes in temperature can cause scale buildup on plumbing infrastructure. Continue reading