Perhaps one of the most detrimental effects of hard water is what it does to your plumbing. The harder your water is, the more minerals are present that can leech onto the insides of your pipes. While hard water build-up can occur in all pipes, it is more common in those that carry hot water. Eventually, the increased presence of scale begins to constrict the opening in your pipes, reducing the flow and water pressure at fixtures like your showerhead and faucets. In extreme cases, the scale can completely block your pipes and cause them to burst due to pressure build-up.
Hard water also contributes to the inefficient operation of your major water-using appliances, including the water heater, dishwasher, and refrigerator. The pipes and valves within these appliances can also become clogged with scale, reducing water flow or causing leaks, resulting in potentially expensive part replacements. This can amount to a 30% to 50% decrease in the lifespan of major appliances due to extreme wear and tear.