| 摘要 |
Disclosed is a filter system with at least one filter element (1) that is arranged below the surface of a body of water, with a fluid to be cleaned that can flow from the inner fluid chamber (11) of the filter element to the exterior of the latter, and that is surrounded by the body of water on the exterior such that the cleaned fluid can be discharged into said water. The filter element (1) has a column-like shape defining a vertical axis and is immersed in the body of water with the vertical axis running essentially vertical. The exterior of the filter element is surrounded by a sheath (25) that forms a flow canal (29) for a vertical flow of the body of water between said sheath and the exterior of the filter element (1).
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