+ Unless you still have live algae, or unless your CYA > 100 ppm, you don't need chlorine that is that high.

+ I don't remember, and haven't checked, your prior test results.

+ These videos apply, mostly, to the HTH 6-way => http://pool9.net/tk-guide/ http://pool9.net/tk-interfere/ The TA video, in the 2nd set, explains how to test TA when chlorine is high.