Swimming Pool Testing
Under the New Zealand Swimming Pool Standard 5826:2000 a public pool is defined as any pool other than for domestic use, and includes commercial, school, institutional, club, hospitality industry, community and local authority pools.
Under this definition, any pool used by a member of the public must be tested. This brochure has been developed to assist pool owners with the understanding of testing services available.
It seems that every year the media finds a new bug living in our swimming pools and because of this, the public has become increasingly aware of the quality of the water that they swim in.
Only by regularly testing your water through a qualified independent laboratory can you satisfy the demands of the pubic while meeting your obligations under New Zealand Standard NZS 5826:2000.
On site observations and tests should be carried out so that an accurate account of sampling conditions can be recorded. Under this standard you are required to hold appropriate NZQA unit standards and must analyse and record your pool water quality at set intervals.
Eurofins New Zealand can assist you to analyse for the parameters that are required less frequently or require an accredited laboratory to perform.
We also analyse for Free Available, Combined and Total Chlorine but these must be performed on site and are therefore not included in the packages we offer. These tests are recorded by you as required in the NZS 5826:2000.
It is important to note that maintaining the level of Free Available Chlorine is the best way of destroying harmful bacteria. Keeping your pool chemistry balanced ensures that the chlorine will do what it is meant to.
Cryptosporidium and Giardia are protozoa that have recently found their way into public pools and have caused serious illness. At the moment the test is very expensive and is not performed routinely except on some council pools.
Surprisingly, Legionella can be found in pool water at public pools, especially if the water temperature is warmer than 23° C and the pool fittings favour the formation of aerosols. Again, chlorine levels must be maintained to reduce the risks associated with these bacteria.