Tough clogs don't stand a chance against Drano 32 oz. professional strength drain care liquid. Drano's special formula is heavier than water and pours straight through standing water. Drano is simple to use and will not harm plastic pipes, disposals, or septic tanks, and works in both kitchen and bathroom clogs.
Drano contains no phosphorus, and is safe enough to use on pipes overnight.
Drano works by breaking clogs down on contact, and after 15-30 minutes clogs are substantially minimized or dissolved. Then a final blast of hot water flushes away what's left of the clog.
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