Recreation, Band 56National Recreation Association, 1963 |
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Seite 343
... pool , piping and equipment has a capacity of 150,000 gallons of water . The pool is filled with water from two fill lines located under the diving boards at the deep end of the pool . These fill lines have a physical air break above ...
... pool , piping and equipment has a capacity of 150,000 gallons of water . The pool is filled with water from two fill lines located under the diving boards at the deep end of the pool . These fill lines have a physical air break above ...
Seite 418
STAN HEDWALL SWIMMING T POOL FILTERS The answer to public health hazards миы تو in your swimming pool سب نید THE " HEART " of any swimming pool , small or large , is its filtration system . Pools , like many human beings . have or may ...
STAN HEDWALL SWIMMING T POOL FILTERS The answer to public health hazards миы تو in your swimming pool سب نید THE " HEART " of any swimming pool , small or large , is its filtration system . Pools , like many human beings . have or may ...
Seite 420
... pool vol- ume through the filters in not more than three hours for public pools and not more than twelve hours for ... pool has two or more filters . W HAT is meant by " pool turnover " ? Every time an amount of water equal to the total ...
... pool vol- ume through the filters in not more than three hours for public pools and not more than twelve hours for ... pool has two or more filters . W HAT is meant by " pool turnover " ? Every time an amount of water equal to the total ...
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Abschnitt 2 | 37 |
Abschnitt 3 | 52 |
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