How can heavy rainfall affect a septic system?

Heavy rainfall can significantly impact a septic system by potentially leading to system overload. When excessive rain falls, the soil surrounding the septic system can become saturated, reducing its capacity to absorb water. This saturation can cause wastewater to back up into the system, as the drain field may not be able to handle the additional volume of water from both the tank and the saturated ground.

In such scenarios, the septic tank may fill to capacity more quickly, and without adequate absorption into the soil, untreated wastewater may surface, leading to both environmental hazards and health risks. This circumstance can also increase the likelihood of system failure, necessitating costly repairs or replacements. Understanding the relationship between heavy rainfall and septic system operation is crucial for maintaining the health of the system and preventing overflow or failure.