Are Bath Bombs Safe for Septic Systems? What You Need to Know


Bath bombs have taken the world by storm as a popular bath-time indulgence. I’ll be the first to admit that I’ve spent my fair share of time (and money) in Lush, smelling the glorious scents of their bath bombs.

These colorful, fragrant spheres effervesce in water, releasing essential oils, scents, and sometimes even glitter, creating a luxurious and relaxing bathing experience.

However, as more people embrace eco-conscious living by considering the impact of their actions on the environment and installing bidets in their home, questions have arisen about the safety of bath bombs, particularly concerning their compatibility with septic systems.

So, let’s dive into the matter (no pun intended!) and find out whether bath bombs are safe for septic systems.

Understanding Septic Systems

Before we can address the issue of bath bombs, it’s crucial to understand what septic systems are and how they work.

Septic systems are on-site wastewater treatment systems used in rural and suburban areas where municipal sewage treatment isn’t available.

These systems rely on a combination of natural processes and anaerobic bacteria to break down and treat wastewater from homes and establishments.

The Ingredients of Bath Bombs

To evaluate the safety of bath bombs for septic systems, it’s essential to look at their ingredients.

Typically, bath bombs consist of sodium bicarbonate (baking soda), citric acid, Epsom salts, essential oils, colorants, and various additives for fragrance and aesthetics. Some bath bombs may also contain small glitter particles or flower petals.

Potential Issues with Septic Systems

The primary concerns with using bath bombs in septic systems revolve around their ingredients, especially those that may disrupt the natural balance of bacteria in the septic tank or clog the drainage field.

Here are some potential issues:

1. Chemical Disruption

Bath bomb ingredients like citric acid and certain colorants may alter the pH levels in the septic tank, affecting the activity of beneficial bacteria responsible for breaking down organic matter.

Significant fluctuations in pH levels could hinder the efficiency of the septic system.

2. Clogging

Glitter particles and flower petals found in some bath bombs could potentially clog pipes and drainage fields over time.

Accumulation of non-biodegradable substances might lead to drainage issues, requiring costly repairs.

Considerations for Safe Usage

While some concerns exist, many people safely use bath bombs with septic systems without any noticeable problems.

Here are some considerations to ensure the safe use of bath bombs.

1. Moderation

Using bath bombs in moderation can minimize any potential adverse effects.

Enjoying an occasional bath bomb will likely have a negligible impact on a well-maintained septic system.

2. Choose Wisely

Opt for bath bombs with natural and biodegradable ingredients. Look for products that are free from non-biodegradable glitters or large flower petals that could lead to clogging.

3. Regular Maintenance

Properly maintain your septic system with regular pumping and inspections.

Regular maintenance helps keep the system functioning efficiently and reduces the risk of any issues.

4. Septic-Safe Alternatives

If you are concerned about using bath bombs, consider using natural bath salts, which are generally safer for septic systems.


In conclusion, the safety of bath bombs for septic systems largely depends on their ingredients and how they are used.

While some ingredients in bath bombs could potentially disrupt septic system processes or cause clogs, using them in moderation and selecting products with septic-safe ingredients can mitigate these risks.

However, it is always a good idea to be cautious and considerate of the potential impact on your septic system.

If in doubt, consult with a septic system professional to get personalized advice for your specific situation.

Remember, eco-consciousness and responsible consumer choices can go hand in hand with a relaxing and enjoyable bath-time experience.