Encouraging healthier living through aquatic education and research.
Latest Activity: Jan 19
Started by Melod yXie Dec 4, 2012.
Started by Laurie Batter Mar 29, 2011.
Started by Laurie Batter Aug 11, 2010.
Good Question... Found this article pages 81-83 or [67-69] depending on the numbering system.
Page 69 second paragraph speaks towards the chlorine level, and the normal pH levels.
Page 69, fourth paragraph, reads the range of 2-5ppm for chlorine in whirlpools and spas. In Ontario, Canada, we have a minimum of 5 to 10 ppm of chlorine in our spas.
Myco abscessus is one of the little studied Non-tuberculosis Mycobacteria (NTM) that are known to form biofilms in warm water distribution systems. The CT value may not be an appropriate measurement of how hardy this bug is as the true control is the elimination or reduction of the biofilm. CT values are generated using organisms in pure cultures and without clumps of protective biomass (glycocalyx, exopolysaccharides, slime, biofilm). IF, and that is a pretty big if, this is a health threat in aquatic facilities, then it will be a threat in those facilities with warm water that broadcast droplets into the breathing zone of patrons. Best control measure is likely to be continuous flow with well disinfected water and routine inspection for unusual amounts of biofilm. There is some indication that the NTM group has very high CT values due to their waxy cell structure and heavy biofilm layers. This group of bugs was the focus of several articles ~10 years ago as the source of "hot tub lung" These are very, very rare cases.
Anyone know the CT value for Mycobacterium abscessus? Brand new RWI I am learning about.
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