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PoolGuyNJ said:Scraped from the web page:SILVER/COPPER / U.V. MULTI-STAGE PURIFICATION SYSTEM
My Opinion: Metal warning. Lack of Oxidizer warning. Stain formation Warning. Slow Kill Time Warning.
Scott
Bruce, it is important to understand that even if he makes you a believer, it will still won't work.I also have a call in to the owner to see if he can make me a believer....
No, that is not my understanding. As noted here:simicrintz said:Richard-Please correct me if I am wrong, but I have been led to believe that even if each individual piece/component of an item has received NSF certification, and you make any changes (nut, bolt, clip, etc.) to the whole of the components the certification is void. Is that your understanding as well?
In other words, it is a certification of a component such as a filter, a UV system, or a copper/silver ionization system. There are standards for components, not for combinations. You can get certified for your system that contains various components that each have some certification standard, but not everything in your system is necessarily going to have a standard. As for whether any minor change requires recertification, I cannot say.The registered NSF Certification Mark on a pool, spa, or hot tub system component confirms that NSF has assessed - and certified - its conformity with the relevant section of NSF/ANSI Standard 50 and/or other product standards.
where I have put in bold the most relevant words "supplementary disinfection". These UV, ozone and ion generator systems cannot be used by themselves. They are supplementary because a fast-acting disinfectant in the bulk pool water is still required and there are only three that are EPA-approved for pools: chlorine, bromine or Baquacil/biguanide/PHMB. For spas, Nature2 with MPS is also approved, but only for spas since hot water temperatures are also required.NSF Standard 50 contains a disinfection efficacy test procedure for process equipment that is intended for supplementary disinfection of water such as UV, ozone and ion generators. The procedure requires a three-log reduction in challenge organisms.
In any event, the claim that the HealthCare system is "THE ONLY NSF CERTIFIED 100% NO CHLORINE SYSTEM APPROVED FOR ALL POOLS AND SPAS" is incorrect."Chlorine-Free" logo only applicable when unit used with bromine or bromine compounds that do not contain chlorine.
chem geek said:I've never seen anything about a high CH having any effect on chlorine. High CH can of course result in scaling (depending on other components of the saturation index), but it should not affect chlorine in any way.
simicrintz said:Maybe I should have PM'd it to you!
frustratedpoolmom said:simicrintz said:Maybe I should have PM'd it to you!
No, this is interesting.