Yes, Ben - thanks! Think the thing that had been causing me the most trouble was understanding how & when chlorine bound up with CYA was released and became available. Sheltering it is all well and good, but unless there was some way for it to come out from that shelter, I was always hazy on what benefit it had.

Now, in a side question -- at what point does the sheltered chlorine become noticeable / unpleasant for humans? With constant recharging via SWCG, is there a ceiling to CYA levels where keeping things that high becomes a bad idea?