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Water Testing

Weekly Bacteriological Test

The Public Pool Regulations state:

  • At least one bacteriological sample of the pool water a week must be submitted to a water testing laboratory for examination.
  • A bacteriological sample must be collected in an approved bottle from below the water surface near an outlet, while the pool is in use.
  • When you submit pool tests to the lab, you will receive tests results back within a few days (they are usually sent to the Health Centre).
  • The coliform count in the pool water must not exceed two colonies for each 100 ml when the Standard Membrane Filter Technique is used.
  • If there is a problem with the results of your tests, the Environmental Health Officer will usually contact you; nevertheless, it is important to always look at the test results to ensure that the values are within the allowable ranges.

Daily Testing

The Public Pool Regulations state:

  • Tests must be taken each day of pool operation at least once every four hours
  • Test ranges should be as follows:
TESTALLOWABLE RANGEIDEAL RANGE
Total alkalinity80 to 200 mg/l80 to 120 mg/l
Calcium hardness100 to 200 mg/l150 to 200 mg/l
pH (pool)7.2 to 7.87.6
pH (hot tub)7.2 to 7.67.4 to 7.6
Free available chlorine (pool)1.0 – 1.5 mg/l 1.2 mg/l
Total residual chlorine (pool)not greater than 2.5 mg/l
Free available chlorine (hot tub)5 to 10 mg/l
Temperature (pool)26°C - 30°C.
Temperature (hot tub)No greater than 40°C
water_testing.1353101930.txt.gz · Last modified: 2013/02/26 14:09 (external edit)