Alkalinity's complicated relationship with chlorine

00:00 - Introduction

00:59 - Relationship 1: High alkalinity can lead to chlorine loss via sunlight

03:41 - Coincidence vs. Cause

04:32 - pH, chlorine and CYA graph

07:36 - Chlorine leaves CYA when the pH gets high enough

09:11 - How alkalinity is involved

11:32 - Relationship 2: Chlorine can increase alkalinity

12:17 - Excess hydroxides in liquid chlorine and cal hypo accumulate

14:30 - Chemistry of chlorination

15:59 - Chlorine hydroxide byproducts

17:41 - Summary

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