The concept of a French drain is relatively simple as far as basement drainage systems go. Basement French drains redirect groundwater away from the foundation of a residential building, therefore avoiding basement flooding and water damage. But how is this done?
First, a skilled technician will excavate a shallow trench around the perimeter of your basement. Next, they will fill the trench in with a layer of gravel or rock, which provides a porous medium for excess water to flow through.
Finally, a perforated pipe is laid within the gravel bed to collect and direct water away from your home. This simple basement drainage system is also one of the most effective.
When water accumulates in the soil around a home’s foundations, it exerts force against basement walls and floors. This force is called hydrostatic pressure. Eventually, this pressure causes cracks, leaks, and sometimes structural damage. French drains provide a path for all the groundwater to drain freely, which helps alleviate the hydrostatic pressure, therefore reducing water seepage, wall cracks, and leaky basements.
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