I used this drain opener because the sink was cloged and wouldn't drain, but it hasn't changed at all and just made a bunch of fumes : r/Plumbing
Amazon.com: Liquid Lightning Buffered Sulfuric Acid Drain Cleaner, 32 Oz (1) : Health & Household
Amazon.com: Liquid Lightning Buffered Sulfuric Acid Drain Cleaner, 32 Oz (1) : Health & Household
LIQUID LIGHTNING - Liquid Lightning Drain Opener Buffered Sulfuric Acid Cleaner 32 Ounces (32 ounces) | Winn-Dixie delivery - available in as little as two hours
Professional Drain Opener, Sulfuric Acid, 64-oz. | True Value