VERTICAL WICK DRAIN Vertical Wick Drains are the most economical ground improvement solution for soft soils with a high clay/silt content. CeTeau manufactures and installs Prefabricated Vertical Drains (PVD) to accelerate the settlement of soft soils. In combination with surcharge or vacuum pressure, the time required to reach the settlement is reduced from years to only months. “Consolidation you can build on.” Read more