| 摘要 |
<p>A clean water system, and a structure thereof, capable of preventing contamination of water and offensive odor for a long time by positively utilizing a purification system of water existing in the natural world such as rivers and seas and capable of managing ponds, etc, at a low cost, wherein water flow generation means is formed comprising an underwater pump (2) provided at one of the ends of a pond (1) and a discharged port (3) for discharging water sucked by the submerged pump (2) from the other end of the point, and a sand layer (4) is formed on the water bottom to a predetermined thickness from the bottom surface (10) to allow fish (5) such as carp as secondary consumers in the food chain to swim. Water is always moved to supply oxygen throughout the pond (1), to prevent water from stagnating and to create an environment in which the food chain functions more easily and to purify water by the function of the food chain of creatures living in the pond (1).</p> |
