A french drain is also known as drain tile. French drains are designed to redirect water away from your home’s foundation. They’re installed when your home is built and are located around the foundation wall or under the basement floor.
The french drain is located below the surface and typically involves a layer of gravel laid around a pipe. The pipe can have holes to collect ground water or extra moisture from rain, which it will then drain away from your foundation.
French drains are prone to clogging which can lead to a flooded basement. And it’s not always easy to clean french drains since they’re deep in the ground, next to your foundation. So it’s important to have other waterproofing solutions installed.