03:00 Andrea's stain assessment process
08:12 Contamination of the imported pool chemicals
14:50 Vitamin C iron stain test
16:00 How ascorbic acid removes stains
19:43 Oxalic acid for iron oxide removal
22:21 Spot treat acid wash
23:40 Tannin stains
25:40 Citric acid
26:34 Copper-cyanurate
30:43 Copper stain removal
Jump right in. The water's fine. Join us, Poolside!
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