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Photo pending
Where we mention MAV AquaDoc pH Down Sodium Bisulfate, 5 lb
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Pool pH: What It Is, How to Test It, and How to Raise or Lower It
Dry acid option · Best for: Small pools and indoor chemical storage
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Pool Total Alkalinity: What It Is, Ideal Range, and How to Raise or Lower It
Small dry-acid container · Best for: A confirmed high-TA correction without liquid-acid fumes