Soft water itself doesn’t corrode plumbing. However, it’s less likely to cause scale buildup, which means it can help extend the life of your pipes and appliances. Corrosion in plumbing is typically caused by other factors, such as acidic water (low pH) or the presence of certain chemicals. Softening your water actually helps protect your plumbing by reducing the hardness minerals that can lead to scale and buildup, keeping your system running smoothly.