Adding BBB

[Water_man]

My responses below in bold.



Hope that helps.

Richard

Thank you again, Richard, for this detailed response.
I understand that it's beyond the scope of this part of the forum, but I'd be interested to see the chemical details of the correlation between CYA level and the amount of FC needed to shock. You mentioned before a paper presented long time ago. Has anything been published so far on line?

Also, it's not easy to understand why such a high level of FC is needed to break 0.5 - 1 ppm CC in an alagae-free shock treatment. In my case it's 19.8 FC (CYA =50), taken from the table you posted at troublefreepools.com. Is it because of the fact that in the presence of CYA, "free" HOCl doesn't exist, but it's rather bound to CYA?
If we need to move on to the China Shop for this purpose, please let me know.

[chem geek]

Continuing in the China Shop in this thread.