What Can Unclog a Drain & Be Safe for the Septic System?


Septic systems rely on natural bacteria and enzymes to process waste and keep everything flowing properly. Harsh chemicals used in many drain cleaners kill the essential bacteria needed by septic systems. There are a few septic-safe drain unclogging options.

Unclogged drain on leaky sink.
(Image by Flickr.com, courtesy of Robby McKee)

Roebic's K-67 Bacterial Drain and Trap Cleaner is safe for septic systems and works in almost all types of drains. According to PlumbingSupply.com, the enzymes produced by K-67 eat most commonly-faced clogs.

Dry sink drain.
Image by Flickr.com, courtesy of Alexandre

According to the Clorox Company, the ingredients in Liquid Plumr are designed to degrade rapidly enough as not to harm septic systems.

Hands over a sink drain.
Image by Flickr.com, courtesy of Alisha Vargas

Enza Power is a natural drain line cleaner and deodorizer that is safe for septic systems. The enzymes in Enza Power remove clogs and odors by clinging to them and breaking them down.

Bubbles in a tub drain.
Image by Flickr.com, courtesy of hobvias sudoneighm

A mixture of baking soda and vinegar creates a bubbly, septic safe drain opener. Begin with about 1/4 cup of baking soda and about 1/2 cup of vinegar. A second dose may be needed for tough clogs.

Multi-colored, lighted drain hole.
Image by Flickr.com, courtesy of woodley wonderworks

According to Hi-Valley Chemical, Inc., 1/2 cup of 3 percent hydrogen peroxide, 1/2f cup of white vinegar, 1 cup of salt and 1 cup of baking soda, mixed together, will open clogged and slow flowing drains. Follow by rinsing the drain with boiling water.

Tub full of bubbles and spheres.
Image by Flickr.com, courtesy of Rick Audet

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