Drain Cleaners for Septic Systems

You can use drain cleaners in a septic system, if you use the right kind. Septic systems rely on live bacteria in the septic tank to break down household waste. Drain cleaners, such as those used in non-septic systems, can kill the bacteria in a septic tank.

Reasons Not to Use Non-Septic Drain Cleaners

Studies show it only takes 12 grams of bleach, or any non-septic drain cleaner to kill all the bacteria in a septic tank. Don't ever use bleach or non-septic drain cleaner unless you're prepared to have your system pumped out and to pay the extra cost of cleaning out your entire system. 

Acceptable Drain Cleaners For Septic Systems

There are a variety of products specifically designed for use in a septic system. Look for septic cleaners with a crystalized sodium hydroxide or natural enzyme base such as:

• Drano Crystals - Caustic and can cause burns. Use with caution and eye and hand protection.
• Bi-O-Kleen’s BacOut - Uses enzymes and all natural ingredients to dissolve grease and clogs.
• BioGuard Plus drain cleaner and septic tank digester - This product is biodegradable. It is also non-toxic, non-caustic, and non-pathogenic (harmful).
• Home Made Drain Cleaner - Pour a 1/2 cup salt and a 1/2 cup baking soda down your clogged drain. Then pour six cups of boiling water after it. Allow to sit overnight, then flush with hot water.