| 摘要 |
A swimming pool water filter has a housing (1) with an inlet (4) and an outlet (10) with a base panel (3) and cover (2). The housing is sub-divided into several co-axial chambers (6.1-6.3) arranged in the direction of water flow from the core outwards. <??>The chambers are packed with bulk solid filter materials e.g. gravel, basalt, zeolite, evacite, active carbon granules etc.. The packing materials are inserted in different mixtures, ratios and grain sizes. The outer chambers are preferably of larger cross-sectional area than the inner chambers. The feed(10) pipe (4) enters through the base (3) and discharges against the cover inner face. Having descended through the first chamber water passes radially under a curtain wall (5) to the second chamber through which it rises to overflow at the top into the outermost chamber. |
