| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-water supply system and a household water supply system capable of preventing the sticking of scale to piping for water supply and a heat exchanger.SOLUTION: In a household water supply system 100 provided with: a water supply main pipe 101 of pulling city water from a city water pipe 190 into a house; and a cool temperature branching part 107 branching the water in the water supply main pipe 101 into cool water side piping 121 and hot-water supply apparatus side piping 125, the space between the city water pipe 190 and the cool temperature branching part 107 is fitted with an active water generating apparatus 1, the active water generating apparatus 1 is provided with: a container having a treatment space generating active water at the inside and ceramic based particles obtained by mixing at least two or more kinds of ceramic based particles with different particle diameters charged inside the treatment space, the water is introduced from the lower part into the treatment space, the ceramic based particles are fluidized in the treatment space, and thereafter, active water is exhausted from the upper part. |
