Holland Pump

Construction dewatering

Water solutions for any application

The primary goal of dewatering is to lower the water table or remove free water from the soil, making it more suitable for construction activities.

Proper dewatering not only facilitates construction processes but also helps in preventing soil erosion, minimizing the risk of landslides, and ensuring the long-term integrity of infrastructure projects. Efficient dewatering strategies are essential for maintaining a dry and stable working environment in areas where water ingress can pose significant challenges.

Excavation Dewatering

This method is the simplest, most cost-effective dewatering solution. Water is collected in at a particular point, usually a sump or kelly well location. Solids handling pumps then pump the collected water out of the excavation to a discharge point. This method is often used with a strainer or float at the suction point to minimize the clay, silt, sand, or other soils before being sucked into the system.

Wellpoint Systems

Wellpoint dewatering is a specialized method employed in construction and excavation projects to lower the groundwater table and create a dry work environment.

It involves the installation of closely spaced small-diameter pipes, known as wellpoints, into the ground. These wellpoints are connected to a common header pipe, and a vacuum or low-pressure pump is used to draw water from the surrounding soil, lowering the water table within the wellpoint influence zone.

Explore our range of wellpoint pumps

Sock Systems

Sock dewatering is an efficient method for dewatering groundwater on construction sites.

It requires a specialized dewatering trencher to install a 5” sock drain (basically a 5-inch diameter corrugated pipe with a filter sock around it), 12ft to 18ft deep in the ground, so that the groundwater can flow into it. Where the sock comes out of the ground is called the tail, and it is connected to a PVC or HDP collection pipe system. The collection pipe is then connected to a suction lift pump to pull the water up and disperse it to another location.

Learn more about our sock dewatering solution