Hydrotherapy tub- science

I am critically reviewing an article about hydrotherapy tubs and their possible effects on the patients and staff who operate them. I need to find 2 scientific flaws and prove how the flaws are inaccurate with references/

I am curious about some of the statements the authors made. They suggest that the water testing completed at least every seven days¦ is at least every 7 days too long? Could harmful bacteria (especially hardy ones that could survive the disinfection process (as mentioned in the article) propagate? Can Pseudomonas aeruginosa grow faster then the seven days? Furthermore, the authors suggests that the samples be taken in the morning after complete disinfection¦ is this actually a representative sample?

As stated in the article..
All provinces have regulations that require regular water sampling of all aquatic facilities such as whirlpools, hydrotherapy tubs and special purpose pools. These regulations usually involve taking at least one sample of water at specified intervals.

In Alberta, at least one sample of water shall be taken at intervals of not more than seven days, and shall be submitted to the Provincial Laboratory of Public Health for examination. (Facilities can obtain information from their regional public health offices on the specific regulations as they apply to respective provinces).

These samples are to be collected first thing in the morning after the tub has been cleaned, disinfected, refilled, is operating, and shall be taken from a point near an outlet (jets).


I also need help disproving these thoughts¦ references (I am having difficulty finding this information)

I appreciate all help.

If required I have included the article.