Sandy Soils: The Dewatering Sweet Spot
Sandy soils are highly permeable, meaning water flows through them easily. This makes them ideal for traditional dewatering methods like wellpoints and deep wells. Because sand doesn’t retain much water, you can typically achieve quick and effective results with the right pumping system.
Best Dewatering Methods:
- Wellpoint systems
- Deep well dewatering
- Sump pumps (for smaller projects)
Clay Soils: The Toughest Challenge
Clay soils are the opposite of sand—dense, compact, and extremely poor at draining water. When wet, clay holds onto moisture like a sponge, making it difficult to remove. Standard dewatering methods may not be effective, requiring a more aggressive approach.
Best Dewatering Methods:
- Vacuum-assisted wellpoints
- Pre-drainage with trenching or open pumping
Silty Soils: The Unpredictable Middle Ground
Silty soils fall between sand and clay, meaning they have moderate drainage but can still trap water. The challenge with silt is that it can become unstable when saturated, leading to erosion or soil loss. Careful monitoring and filtration are key to effective dewatering.
Best Dewatering Methods:
- Wellpoints with filtration
- Deep wells with controlled flow rates
- Eductor systems
Choosing the Right Dewatering Solution
No two job sites are the same, and soil conditions can vary even within the same location. A proper site assessment helps determine the best dewatering method, keeping your project on schedule and preventing costly delays.
Need expert advice? Contact one of our experts to ensure your dewatering system is built for success.
