Liquid-Plumr

Liquid-Plumr is a chemical drain opener produced by the Clorox Corporation. It consists of 0.5-2.0% sodium hydroxide and 5-10% sodium hypochlorite, plus a surfactant.

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Three months after Procter & Gamble acquired Clorox in 1957, the Federal Trade Commission sued under the Clayton Act. After a decade of legal battles, the United States Supreme Court ordered P&G to divest itself of Clorox. Clorox became an independent company again on January 2, 1969 and in April 1969, Clorox pooled all its available cash and credit to buy Liquid-Plumr drain opener.