Is Fabric Softener Bad for Septic Systems?

In this blog post, our professionals from Septic Blue will explain how fabric softener impacts your septic system.

How Fabric Softener Affects Septic Systems

Fabric softeners are composed of various chemicals, including quaternary ammonium compounds (quats), which are designed to coat fabrics with a thin layer of residue. While this residue makes clothes feel soft, it can also accumulate in your septic system. Clogs and decreased efficiency in the system may result from the formation of a layer of sediment on the surface of the septic tank over time. This buildup can prevent the proper breakdown of waste, increasing the likelihood of requiring septic tank pumping more frequently.

Risks of Clogs and Blockages

Fabric softeners can contribute to septic system clogs by accumulating fats, oils, and grease in the pipelines. These substances have the potential to solidify and adhere to the walls of the septic tank, resulting in blockages that obstruct the passage of wastewater. If left unattended, these obstructions can result in plumbing system backups, which may require the assistance of a company for septic tank repair or installation, depending on the extent of the damage.

The Role of Beneficial Bacteria

Septic systems rely on beneficial bacteria to break down and decompose organic matter in the waste. Fabric softeners, with their antimicrobial properties, can harm these bacteria, disrupting the natural balance within the septic tank. When the bacteria population is reduced, the waste decomposition process slows down, leading to a buildup of solids in the tank. This may result in a reduction in the system's overall lifespan and a higher need for routine septic tank cleaning.

Alternatives to Fabric Softener

Consider employing alternative methods to soften your laundry in order to safeguard your septic system. One popular option is white vinegar, which can be added during the rinse cycle to soften clothes naturally without harming your septic system. Vinegar is biodegradable and does not pose a threat to the beneficial microorganisms in the tank. Additionally, wool dryer balls are an eco-friendly option that can reduce static and soften fabrics without the need for liquid fabric softeners.