Article on CYA--Comments?

[JohnT]

Interesting information. Can't vouch for its accuracy.

Summary: Most of the benefit of CYA can be realized at 5 to 10ppm as far as chlorine staying power. ORP of any chlorine level above 1.2 ppm is about the same once CYA exceeds 70ppm. Direct relationship between ORP and disinfecting action isn't fully quantified. Some bacteria in controlled conditions took 100 times longer to die in CYA stabilized water, although others MAY have been more quickly killed in the presence of CYA.

http://www.strancoaquatics.com/lit_f...ilization1.pdf

And another. One seems to be derivative of the other:

http://www.ppoa.org/pdfs/PrP_Cyanuri...0or%20Bomb.pdf