| 摘要 |
Improved swimming pool apparatus includes contiguous, separate pool and secondary water chambers. The secondary chamber receives pool surface water via a skimmer weir regulated by the main pool water level, and via a pool main drain coupling. A cascaded, submersed filter and pump cleans and returns water to the pool. The apparatus need not be winterized and provides water recirculation and cleaning-even in the presence of surface ice; utilizes pump waste heat for water heating; and assures both pool and pool water cleaning during normal operation.
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