Hard water typically manifests through residual scum marks inside cups, bathtubs, and sinks, as well as a delay in suds formation when soap is introduced. Homes in hard water areas commonly experience limescale buildup. Nevertheless, even in regions classified as having soft water, localized instances of hard water can arise. This can occur due to fluctuations in the water supply source, such as during shortages, or due to specific geological conditions in the area. As a result, limescale may still be observed in your home, despite residing in an area typically associated with soft water.