The Ultimate Guide to Septic Safe Laundry Detergent

Septic systems are an essential part of many households. They help manage wastewater and keep our environment clean. However, septic systems can be easily damaged by harmful chemicals, including laundry detergent. In this guide, we will explore everything you need to know about septic safe laundry detergent and how to keep your septic system running smoothly.

What is Septic Safe Laundry Detergent?

Septic safe laundry detergent is a type of detergent that is specially formulated to be safe for use in septic systems. These detergents contain fewer chemicals that can harm your septic tank or drain field, making them a perfect choice for homeowners with septic systems.

Why Use Septic Safe Laundry Detergent?

Using a septic safe laundry detergent has many benefits, including:

  • Protecting your septic system: Regular laundry detergents contain chemicals like phosphates and chlorine bleach that can harm your septic system. Septic safe detergents are designed to be safe for septic systems and help keep them running smoothly.
  • Protecting the environment: Harmful chemicals from traditional laundry detergents can leach into the soil and groundwater, potentially contaminating nearby water sources. Using septic safe laundry detergents helps to minimize the environmental impact of your laundry routine.
  • Saving money: A damaged septic system can be costly to repair or replace. Using septic safe laundry detergents can help prolong the life of your septic system and save you money in the long run.

Ingredients to Avoid in Laundry Detergent

When choosing a septic safe laundry detergent, it’s important to know what ingredients to avoid. Here are some common ingredients to watch out for:

  • Phosphates: Phosphates are often found in traditional laundry detergents and can cause algae blooms in waterways, which can lead to a decrease in oxygen levels and harm aquatic life.
  • Chlorine bleach: Chlorine bleach can be harmful to septic systems and can also cause environmental damage.
  • Fragrances: Fragrances can contain harmful chemicals that are not biodegradable and can harm aquatic life.
  • Enzymes: Enzymes in laundry detergents can break down organic matter, which can lead to clogs in your septic system.

Ingredients to Look for in Septic Safe Laundry Detergent

When looking for septic safe laundry detergents, here are some ingredients to look for:

  • Biodegradable surfactants: These surfactants are derived from natural sources and are biodegradable, making them safe for septic systems.
  • Plant-based ingredients: Plant-based ingredients are biodegradable and safe for septic systems.
  • Low-sudsing formula: Low-sudsing detergents are less likely to cause clogs in your septic system.

Tips for Using Septic Safe Laundry Detergent

To get the most out of your septic safe laundry detergent, here are some tips to keep in mind:

  • Use the recommended amount: Using too much detergent can overload your septic system and cause it to fail. Follow the manufacturer’s recommended usage instructions.
  • Use liquid detergents: Liquid detergents are less likely to leave residue that can clog your septic system.
  • Avoid fabric softeners: Fabric softeners can leave a residue on your clothes that can harm your septic system.
  • Avoid washing large amounts of laundry in a single load: Overloading your washing machine can cause too much water to enter your septic system at once, potentially overwhelming it.


Using a septic safe laundry detergent is an easy way to protect your septic system and the environment. By avoiding harmful chemicals and choosing a detergent that is safe for septic systems, you can keep your septic system running smoothly and save money in the long run. Remember to look for ingredients like biodegradable surfactants and plant-based ingredients, and avoid ingredients like phosphates, chlorine bleach, fragrances, and enzymes.

In addition to using a septic safe laundry detergent, it’s also important to maintain your septic system properly. Regularly pumping your septic tank, conserving water, and avoiding flushing non-biodegradable items down the toilet can all help keep your septic system functioning properly.

If you’re unsure about whether a laundry detergent is safe for your septic system, look for products that are labeled as septic safe or consult with a septic system professional.