Water Softening Soften water throughout your home to protect your appliances and eliminate hard water spots and stains. <, A. 0. Smith water softeners reduce excessive calcium and magnesium to solve hard water problems throughout your home. Water Conditioning Recluse chlorine taste and odor along with scale buildup to lengthen the life of pipes and appliances. ve The A. O. Smith water conditioner combines obsessively engineered filtration and salt-free scale reduction technology.