I believe the post was more detailing a one off experiment rather than advocating the use of battery acid to amend soil pH. I thought the results were interesting.
Yeah, the sulfuric acid/electrolyte solution I’ve added to a battery to bring it online is much different than the solution that comes out of a used battery.
Besides the possibility of the applicator getting chemical burns, I wonder the environmental impact (if any). The experiment was out of the box genius though imho.
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