The Power of Apple Cider Vinegar for Rust Removal

you could line a crate with a garbage bag and use that as a dip container, just keep the block winched up. you can do hoods too, just get a kiddie pool and a fountain pump. Pump the juice through a sprayer and let it run over the hood.
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I was thinking about using a kiddie pool. But your idea of the fountain pump is great.