If where you live has been experiencing frequent rain, it is natural to be concerned about your septic system. During heavy rain, drainage systems often get overwhelmed and streets flood. But can the same be said for your septic system?
Heavy rain shouldn’t damage your septic system or cause major drainage issues if it is properly maintained. However, you may experience problems if the rain causes your drainfield to flood.
A flooded drainfield won’t allow wastewater to drain properly, often forcing it back into your home’s drains.
Ways Flooding Can Affect Your Septic System
If the heavy rains in your area cause flooding, you may notice a few septic system issues. During a flood, the following problems can occur:
- Drainage backup. When your drainfield gets clogged, excess wastewater gets pushed back into the septic tank and your home. This backup causes sewage to appear in drains.
- Flooded drainfield. During a flood, your drainfield will become heavily saturated. You’ve especially got a problem on your hands if there’s standing water above your drainfield.
The drainfield’s purpose is to filter the remaining wastewater into the soil. When the ground above your drainfield is too soggy, it can’t filter properly. This sogginess can cause a whole host of problems like sewage backup, foul odors, and gurgling pipes.
- Groundwater contamination. If wastewater can’t be filtered properly, it will leach out of pipes before it has been purified. Then, the wastewater mixes with the groundwater, trickling into nearby water sources.