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Showing results for tags 'sodium hydroxide barrel cleaning'.
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Deborah195412 posted a topic in GENERAL AQUAPONICS DISCUSSIONI have access to free 55gal barrels that once contained sodium hydroxide. From what I understand, The barrels can be cleaned and neutralized with acetic acid. Would these barrels be safe after cleaning, neutralizing,soaking and rinsing several times and doing a ph test on water soaking in the barrel ?