Without a functioning heater, a hot tub is just a tub. Fortunately, most modern hot tubs are fitted with efficient, reliable heating systems, but these heaters can still suffer from malfunctions caused by poor maintenance, accidental damage, or simple wear and tear.
If your hot tub's heater is not working as it should, the problem may be caused by calcium build-up. Calcium deposits can seriously undermine the heating power of any hot tub heater.
Hard water is considered safe for domestic consumption. However, it will harm the quality of your plumbing, appliances that use water, and your body. For example, the mineral deposits create limescale which blocks plumbing pipes, damaged other machines, and clog showerheads. Most homeowners look for this reliable water quality improvement system because it is ideal to eliminate minerals from their water and to maintain their plumbing. However, the pressure the unsoftened water places on the equipment leads to frequent breakdowns.