Studies on the sanitation of swimming pools by Manheimer Wallace A. 1887-

Author:Manheimer, Wallace A., 1887-
Language: eng
Format: epub, pdf
Tags: Swimming Pools
Publisher: Chicago
Published: 1914-03-25T05:00:00+00:00

Sanitation of Swimming Pools

17

POOLS EMPTIED ONCE IN TWO WEEKS

POOL 11 Water: City, filtered. Capacity, 55,000 gallons.

Management of water: Dilution water added at night in a quantity sufficient to account for fillings every 3 days.

Attendance: 6,000 men in two weeks.

Bacteriological Examination

A. Quantitative Analysis B. Qualitative

Analysis for Agar 37° C. Gelatin 20° C. Colon Bacilli

per c.c. per c.c. per c.c.

Tap water (control) 5 36 0

Used 1 hour by 20 men 30 300 0

Used 12 hours by 500 men 700 6,000 Bet. 1-10

A. M. 96 hours by 1,000 men 4,000 44,000 Bet. 1-10

P. M. 108 hours by 1,500 men 2,500 150,000 Bet. 1-10

A. M. 210 hours by 3,500 men 2,600 150,000 Bet. 1-10

P. M. 222 hours by 4,000 men 5,000 170,000 Bet. 1-10

P. M. 300 hours by 6,000 men 1,400 31,800 0

Sample from filter (control) 8 40 0

Discussion: It is obvious that sanitary measures are necessary to correct the needlessly high bacterial counts.

POOL 12 Water: City, filtered. Capacity, 90,000 gallons.

Management of water: Pool well filtered, clear throughout use. Can be arranged for three depths. Turkish baths (usually) taken prior to use of pool. Attendance: 530 men in two weeks.

Bacteriological Examination A. Quantitative Analysis

Tap water (control) After 168 hours' use After 180 hours' use After 360 hours' use After 372 hours' use After 384 hours' use After 396 hours' use After 408 hours' use After 420 hours' use

Discussion: The reasons for this sanitary condition are: (1) The body of water is large as compared with the attendance; (2) enough dilution water is added to account for a little less than one refilling; (3) most of the bathers had taken Turkish baths prior to entering the water.

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