| 摘要 |
Several water jet holes (4) are connected with the water tank (2) and are located directly beneath the water surface in the inflow-side wall of the swimming pool (1). A sluice (5) is arranged in the upper edge of the wall opposite to the water jet holes. A water accommodation tank (7) receives the water flowing out over the sluice. A pump unit (3) delivers the water in the accommodation tank into the water tank. The water tank is hermetically closed and the water accumulated in it is set under pressure. On the upper side of the sluice is a safety barrier, which does not give access to a human body. On the route from the water accommodation tank to the pump unit, a filter unit, a decontamination unit and/or a heating are joined to each other.
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