Ok, done except for typos.

A couple of references:
http://www.poolforum.com/pf2/showthread.php?11784
http://www.poolforum.com/pf2/showthread.php?17276
http://www.troublefreepool.com/baqua...da-t40559.html
http://www.archchemicals.com/Fed/BAQ...t_up_49309.pdf
http://www.ultramodern.com/Bulletins/BUL-105.pdf