5 Best Toilet Bowl Cleaners for Septic System Tanks | Septic-Safe Product Reviews

cleaning toilet bowl
Plant based toilet bowl cleaners are best option.

If you have a septic system on your property like we do, you’ve probably heard that it’s best to use cleaning products that are septic-safe.  Harsh, toxic chemicals can actually kill the “healthy bacteria” that thrives inside your septic system and naturally breaks down the waste inside the tank.

The best toilet cleaners for septic tanks are ones made from natural and plant ingredients since they are biodegradable and safe for septic systems, like this Toilet Bowl Cleaner by Eco-Me.

Flushing corrosive or hazardous cleaners down the drain can be detrimental to your septic system tank. A very large amount of harsh chemicals can also be too much for your system to handle properly, preventing the ingredients from being broken down and eventually leaching out through the drain field which is a potential health hazard.

The other problem is that solids build up quicker in an inefficient tank -requiring you to get your septic tank pumped more often -which can get very expensive.

Luckily, there is a wide range of cleaning products on the market now that are safe to use in septic tanks and use more natural ingredients. Using a toilet cleaner that is made for septic systems helps prevent your septic system from backing up, prevents damage from toxic chemicals produced from toilet cleaners and is better overall for your home and the environment.

Here are a few products to consider using if you have a septic tank system:

Our Top Picks for Septic-Safe Toilet Bowl Cleaners

Here are a few things to consider when purchasing a toilet bowl cleaner, and bathroom cleaning supplies in general, if you have a septic system.

First some tips that can help:safe toilet cleaner for septic tanks

  • Avoiding pouring large amounts of cleaning products or household chemicals down your drain at the same time.
  • When putting cleaning products down the drain, dilute with plenty of water and/or flush with additional water.
  • Use single ply toilet paper that is specifically designed for septic and RV toilets and breaks down easier than standard toilet paper.
  • Use non-chlorine, non-ammonia, non-antibacterial, non-toxic and bio-degradable cleaning products.
  • Avoid putting solvents and solvent-based products or garden chemicals such as pesticides down the drain.
  • Contact your local recycling center or waste disposal center to find closest drop-off location for toxic products.

As we mention in our article about how a septic system works, in a properly functioning system, the tank needs to have a healthy balance of bacteria to break down the solids inside the tank. Large amounts of harsh chemicals can upset the balance of the tank and kill off the “good bacteria” that is working to process your household waste. Therefore it’s recommended that whenever possible you use bio-degradable cleaning products and avoid ammonia, anti-bacterial and chlorine based products.

Ecover Toilet Cleaner:

Ecover Toilet Cleaner - 25 oz - 2 pk This toilet bowl cleaner from Ecover removes tough stains while de-calcifying and freshening the toilet. It is powerful and hygienic while being eco-friendly. The reasons why it is suitable for use with septic system are that it is produced with plant based ingredients, it is easily biodegraded, it has a very low impact on aquatic life.

The ingredients in this cleaner, including the surfactants (active ingredient that does the actual cleaning) are all plant-based which makes it a safe choice for your septic system tank.

Ecover’s packaging is also friendly on the environment. The bottles are 75% Plantplastic® and 25% post-consumer recycled plastic (PCR). Plantplastic® is a proprietary plant-sourced plastic made from sustainably harvested sugarcane. Ecover cleaning products are not tested on animals.

The bottle are completely recyclable,  and can be recycled in most city curbside recycling programs along with your other containers and newspapers. This makes the Ecover Toilet Cleaner very suitable for use with a septic system.

Check price and read reviews of Ecover Toilet Cleaner here.

Green Works Toilet Bowl Cleaner
Septic Safe Toilet Bowl Cleaner

Green Works Toilet Bowl Cleaner:

The Green Works Toilet Bowl Cleaner is a cleaner that gives a powerful cleaning performance coupled with the fact that it is made with naturally derived and plant based ingredients, which is one of the reasons it is quite ideal for use with a septic system.

It is very effective at cleaning that it can cut through the most stubborn of stains. This powerful formula is known to remove rust, mineral deposits, and hard water stains without leaving any residue or harsh chemical fumes.

Once applied to the toilet bowl, the thick gel coats the entire bowl like a nylon cover and starts its action by cutting right through the dirt and leaving the toilet fresh and clean. Its angles spout is designed so as to reach places like underneath the rim making it easier to clean. The cleaner does not contain chlorine bleach and stills cleans extremely well.

It is a non-chlorine and non-toxic cleaning product that consists of all-natural ingredients. This makes it very ideal for use with a septic system, and can be termed as septic safe.

Check price and read reviews of  Green Works Toilet Bowl Cleaner

Several readers have asked If Comet cleaning power is safe to use with a septic system? (click to find out what we discovered).

Seventh Generation Toilet Bowl Cleaner

This natural toilet bowl cleaner comes in a pleasant Emerald Cypress and Fir Scent: the Seventh Generation Toilet Bowl Cleaner is made with a formula that consists mainly of plant ingredients that attack stubborn stains found on the toilet bowl, and leaves it sparkly clean in a flash.

Seventh Generation eco-friendly cleaner
7th Generation Toilet Bowl Cleaner

The Emerald Cypress and Fir Scent is made totally from essential oils and botanical extracts, which make it suitable for use with a septic system while maintaining its powerful cleaning action with a pleasant smell. It cleans effectively without producing harsh residue fumes that are toxic to health. It is biodegradable and septic-safe.

It does not contain bleach such as chlorine bleach, and other synthetic fragrances and dyes that might be harsh to both the user and the toilet bowl. And as expected with products by Seventh Generation, the company uses sustainable production to minimize impact on the environment.

Its flip cap is designed so as to effectively reach spots that are hard to reach like up under the toilet bowl rim.

The cleaner is a very effective, non-chlorine, non-toxic, biodegradable cleaning product that is safe for use with a septic system.

Check price and read reviews of  Seventh Generation Toilet Bowl Cleaner

Better Life Natural Toilet Bowl Cleaner

Better Life Natural Toilet Bowl Cleaner, 24 Ounces, 24212This natural, plant based toilet bowl cleaner is designed to be squirted under the rim and left for 5-10 minutes before brushing and then flushing the toilet to rinse. The product is free from the following chemicals making it a safe option for your septic system and for maintaining a toxic free home in general.

  • Chlorine
  • Synthetic fragrances
  • Bleach
  • Dyes
  • Petroleum solvents
  • Phosphates
  • Ammonia
  • Sulfates,
  • Petro-chemical solvents
  • Synthetic fragrances

The Better Life company was founded by two dads that wanted to make safe cleaning supplies for a toxic-free home. You may be familiar with the company already as millions saw them on Shark Tank when they pitched their cleaning supply company. The pitch ended with a somewhat shocking effect where one of the founders (Kevin Tibbs), sprayed their What-EVER! all purpose cleaner into his mouth!

The stunt (and the products) convinced the judges and they ended up landing a huge deal with one of the “sharks”. Since then the company has had huge growth and now sells a wide variety of household cleaning supplies that are non-toxic and also septic safe.

Scene from Shark Tank:


no toxic label from cleaning productsPurchasing the right toilet cleaner that does not have negative impacts on the septic system is not difficult. All the user has to consider is its ingredient to determine whether it is biodegradable or not.

Toilet cleaners made from plant materials are usually the ideal cleaners that are suitable for septic systems because they are non-toxic and easily biodegradable.