Fleishhacker Pool

Fleishhacker Pool or Delia Fleishhacker Memorial Building was a public saltwater swimming pool located in the southwest corner of San Francisco, California, United States, next to the San Francisco Zoo at Sloat Boulevard and the Great Highway. Upon its completion in 1925, it was one of the largest heated outdoor swimming pools in the world and remained open for more than four decades until its closure in 1971. It was eventually demolished in 2000.

It was built by philanthropist and civic leader Herbert Fleishhacker in 1924, and opened April 22, 1925. The pool measured 1,000 by 150 ft , held 6,500,000 US gal of seawater, and accommodated 10,000 bathers. The pool was so large the lifeguards required rowboats for patrol, and was used by the military for drills and exercises. The pool water was pumped from the Pacific Ocean, filtered and heated. The pool's heater could warm 2,800 US gal of seawater from 60 degrees to 75 degrees Fahrenheit each minute. This resulted in a constant pool water temperature of 72 degrees for AAU swim meets.

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