Deborah195412

Can barrels that once contained sodium hydroxide be used for aquaponics ?

2 posts in this topic

I 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 ?

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