Liquid-Plumr

Liquid-Plumr is a chemical drain opener made of 0.5–2% sodium hydroxide and 5–10% sodium hypochlorite, and a surfactant, produced by Clorox. The product is safe for septic systems, PVC, plastic, and copper pipes, although is not recommended for and can damage rubber piping.

The Liquid-Plumr products have a child-resistant closure that prevents leaking and potential harm. However, in 2016 Clorox issued a voluntary recall on products sold before March 21, 2016 due to failures with the child-resistant closure affecting about 5.4 million units with no injuries reported.