Why Does My Septic Smell When Its Cold

As such, the methane gases typically found in the septic tank don’t flow through the vent as they normally would. Instead, they stay low to the ground, causing a foul smell similar to rotten eggs. Cold temperatures can cause downdrafts from plumbing vent stacks.

How do I stop my septic from smelling?

Avoid pouring fats, oils, coffee grounds, cleaning products, paints, or other chemicals down your sink or tub drains. These can disrupt sewage breakdown inside the tank and cause a foul odor. Adding a cup of baking soda to a sink drain or toilet once a week will help maintain the correct pH level in the septic tank.

Why does my septic tank smell in the morning?

Smelly septic tanks are a result of the presence of gases in the system, including hydrogen sulfide, carbon dioxide and methane. The pH levels in these gases are too acidic for the microorganisms in the tank to digest the organic matter, causing the tank to smell.

Robert Thorne

Robert Thorne

Automotive & Future Transportation Editor

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.

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