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Liquid-Plumr

Liquid-Plumr is a United States household drain-cleaner brand produced by The Clorox Company.

Last updated August 21, 2026

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Overview

Liquid-Plumr is a household chemical drain-opener brand owned and produced by The Clorox Company. Its products are formulated to clear or reduce blockages in household plumbing by combining sodium hydroxide, sodium hypochlorite, and a surfactant. The formulation described in reference material contains approximately 0.5–2% sodium hydroxide and 5–10% sodium hypochlorite. These ingredients provide the chemical action needed to break down or loosen common organic obstructions in drains, while the surfactant helps the liquid spread through the plumbing system. The brand became part of Clorox during a major corporate transition. Procter & Gamble acquired The Clorox Company in 1957, but the Federal Trade Commission challenged the transaction under the Clayton Act. After approximately a decade of litigation, the United States Supreme Court required Procter & Gamble to divest Clorox. Clorox became independent again on January 2, 1969. In April of that year, Clorox used its available cash and credit to acquire Liquid-Plumr, adding a drain-opening product line to its household-products portfolio. Liquid-Plumr is positioned as a practical maintenance and emergency solution for residential drains. Reference material states that the products are designed to be compatible with septic systems, PVC, plastic, and copper plumbing. The same material cautions that the products are not recommended for rubber piping and may damage it. Because the formulations contain strong oxidizing and caustic chemicals, packaging and handling are important parts of the brand proposition. Liquid-Plumr products use child-resistant closures intended to reduce leakage and the risk of accidental exposure. In 2016, Clorox announced a voluntary recall involving products sold before March 21, 2016. The recall concerned failures of the child-resistant closure and affected approximately 5.4 million units. The available reference material reports no injuries associated with the recall. The incident illustrates the safety and packaging responsibilities associated with a chemical household product, even though the underlying product category has a straightforward consumer need. Liquid-Plumr operates within the household cleaning and maintenance segment and competes with other drain-cleaning products, including Drano, which is owned by S. C. Johnson & Son. The available source material does not establish a complete international footprint, a detailed current product portfolio, a founding individual, or a separate corporate headquarters for the brand. It is therefore best treated as an active product brand within The Clorox Company's portfolio rather than as an independent company.

History

Liquid-Plumr's documented corporate history is closely connected to the ownership history of The Clorox Company. Procter & Gamble acquired Clorox in 1957. Three months after that acquisition, the Federal Trade Commission filed suit under the Clayton Act, challenging the combination on competition grounds. The dispute continued for roughly a decade and ultimately reached the United States Supreme Court. The Court ordered Procter & Gamble to divest Clorox, and Clorox became independent again on January 2, 1969. After regaining independence, Clorox expanded its portfolio by acquiring Liquid-Plumr in April 1969. The transaction was financed with Clorox's available cash and credit and brought a chemical drain-opener brand into the company's household-products business. The acquisition established Liquid-Plumr as a Clorox brand rather than an independent drain-cleaning company. The product is described as a chemical drain opener using sodium hydroxide, sodium hypochlorite, and a surfactant. Reference material identifies approximate formulation ranges of 0.5–2% sodium hydroxide and 5–10% sodium hypochlorite. It also describes the product as suitable for septic systems and compatible with PVC, plastic, and copper pipes, while warning against use with rubber piping because it can cause damage. The brand's packaging includes a child-resistant closure intended to prevent leakage and reduce the potential for harm. A significant later event occurred in 2016, when Clorox voluntarily recalled Liquid-Plumr products sold before March 21 of that year. The recall covered approximately 5.4 million units because some child-resistant closures could fail. No injuries were reported in the source account. The recall made packaging performance a central issue in the brand's documented history and highlighted the regulatory and safety obligations associated with concentrated household chemicals. The available material does not provide a detailed chronology of advertising campaigns, product launches, leadership appointments, international expansion, or changes in ownership after the 1969 acquisition. Liquid-Plumr is nevertheless documented as an active Clorox product brand serving the household drain-cleaning market.

  • 2016

    Voluntary packaging-related recall

    [1]

    Clorox recalled approximately 5.4 million Liquid-Plumr units sold before March 21, 2016, because of failures involving child-resistant closures. No injuries were reported in the cited account.

  • 1969

    Clorox becomes independent again

    [1]

    Following extended antitrust litigation, the United States Supreme Court required Procter & Gamble to divest Clorox. Clorox's independence was restored on January 2, 1969.

  • 1969

    Clorox acquires Liquid-Plumr

    [1]

    In April 1969, Clorox used its available cash and credit to acquire the Liquid-Plumr drain-opener brand.

  • 1957

    Procter & Gamble acquires The Clorox Company

    [1]

    Procter & Gamble acquired Clorox, a transaction later challenged by the Federal Trade Commission under the Clayton Act.

Products and positioning

A household drain-maintenance and clog-clearing brand centered on chemical liquid drain openers, with emphasis on plumbing compatibility and child-resistant packaging.

  • Drain cleaner

    Liquid-Plumr chemical drain opener

    The brand's core product is a chemical liquid drain opener intended for household plumbing blockages. The cited formulation contains sodium hydroxide, sodium hypochlorite, and a surfactant, with approximate concentrations of 0.5–2% sodium hydroxide and 5–10% sodium hypochlorite. The product is described as safe for septic systems and compatible with PVC, plastic, and copper pipes, but it is not recommended for rubber piping because it may cause damage. Packaging uses a child-resistant closure.

Controversies

  • 2016

    Recall involving child-resistant closures

    Clorox voluntarily recalled approximately 5.4 million Liquid-Plumr products sold before March 21, 2016, after identifying failures in the child-resistant closure. The cited source reports no injuries.

Read more

Brand decisions

  • 2016

    Voluntary recall of affected product unitsOther

    Background

    Clorox identified failures involving the child-resistant closure on Liquid-Plumr products sold before March 21, 2016.

    Action taken

    The company voluntarily recalled approximately 5.4 million affected units.

    Aftermath

    The cited reference reports no injuries. The event underscored the importance of packaging safety for concentrated chemical household products.

  • 1969

    Clorox acquires Liquid-Plumr after returning to independenceM&A

    Background

    After the Supreme Court required Procter & Gamble to divest The Clorox Company, Clorox became independent again and sought to deploy its available financial resources.

    Action taken

    Clorox used available cash and credit to acquire Liquid-Plumr in April 1969.

    Aftermath

    Liquid-Plumr became part of Clorox's household-products portfolio and remained associated with the company as a drain-cleaning brand.

Sources1 sources

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