Muriatic acid

Used that to dip my rusty rims in. Cleaned them up like magic. Flash rusted in s matter if minutes but it wipes off. Goid call on distilled water rinse after baking soda. Neutralized acids using a base creates salt,vthays what you need to get off to prevent rust. A plastic yard waste can from home depot was perfect size for a 14 Rallye rim. Fill with gallon buckets of water to see how much it will take to just cover rim, then dump and add water minus 2 gallons. Fill rest with pool acid slowly to avoid splashing. Always add acid to water or a violent reaction can occur adding water to acid! Let it set checking every 10 minutes. Then remove and dunk in neutralizing bath of base, baking soda mix. Finsl rinse or spray down with distilled water. Does pool acid etch toilet bowl?