Ladies and Gentlemen:
As we gear up for the Final Review and Publication of the Model Health Code, the Mandate for Secondary Sanitation for Crypto Control will befall on all Aquatic Venues requiring this technology. With that in mind, I want to pose a simple question...
IS IT REALLY NECESSARY?
It came to my attention a few years ago when the mention of a Study regarding Crypto Inactivation using ORP technology, rather than Residual Chlorine measurements, was conducted by Dr. Ebba Lund, a renowned researcher of ORP and inactivation rates of RWI's in Water. This research concluded that, by way of ORP control, Cryptosporidium can be inactivated at a given ORP value, regardless of a specific Chlorine residual. This study also showed that the required residuals were FAR less than that previously indicated by the CDC. at values as low as 17ppm, it achieved a 4log inactivation of Crypto (99.99%).
Obtain your copy of the Study HERE
(Due to Licensing and Intellectual Property Laws, This Study's current owner - the AWWA, will allow you to see it by way of purchase)
You see, ORP is a QUALITATIVE measurement of a Sanitizer/Oxidizer in water. Over the years, This distinction became confused, as Controller Manufacturers made a futile attempt to distinguish a relationship between the ORP value on the controller, with a given Sanitizer residual; this created much controversy, and in time, made ORP seem unreliable to an Industry looking for consistent chlorine residual. Today, with the advent of the Amperometric Sensor, ORP is beginning to take a back seat in the Controller Industry. And with that, Chlorine has become the "bad guy" in Water Sanitation.
Today, Dr. Lund's findings are creating doubts over the validity of the CDC's original findings on Sanitizer residuals and Crypto Control, and with that, a very large doubt as to whether we really NEED Secondary Sanitation. Can Chlorine do the Job that the CDC says it cant? I'm about to find out. With the Advent of High Capacity Feed Chlorination, or HCF, its becoming clearer to users of the technology that its actually possible to reach the ORP values indicated in the ORP/Crypto Study, with far less residuals than published. Currently, HCF pools can achieve ORP levels as high as 850mV, while maintaining PPM values less than 3ppm. Can Ebba Lund's 865mV ORP "Spectrum" be achieved, with an ACCEPTABLE Chlorine residual?
It is my belief that:
So, How do you set out to prove this?:
Sounds intriguing, right?
A couple of other things; By way of HCF, these pools will also:
Be sure to check in on updates as they come in.
For more information on the HCF system by Link Automation/Chemtrac, check out our HCF page at www.treatmentspecialties.net .
I would like to Introduce the First 3 of the 6 candidates for The trials.
Be on the lookout for the other three candidates for the Phase ONE trials of this study.