Insider Facts and Ideas on Heavy Construction Equipment

When installing a wellpoint dewatering system on a work site, there are a number of important factors to keep in mind, especially given Australia's unique terrain and climate conditions. 

If you're planning to install a wellpoint dewatering system, there are four key factors to consider before making the investment.

1. Dewatering Depth

A wellpoint dewatering system should be installed in a location that has the greatest potential to get water out of the ground. The deepest point for dewatering is typically determined by the depth of groundwater, but other factors such as soil type and bedrock composition can also play a role. In some cases, it may be necessary to install multiple wellpoints at different depths in order to reach the optimum amount of water.

The required depth to which you need to lower the water table will determine well screen lengths, pump types and overall system specs. A hydrogeological report can help determine expected groundwater levels at your location to size the equipment properly. 

2. The Soil Conditions

Australian soils can vary widely from sandy desert soils to tropical rainforest loams, so determining your soil type is critical. Wellpoint systems work best in soils with adequate permeability like sands and gravels to allow for rapid water extraction. In clay soils with low permeability, alternative methods may be needed. Soil testing in advance is advisable. 

3. Pump Capacity

The volume of water needing extraction and the discharge rate required will dictate the capacity and number of pumps for your wellpoint dewatering system. Higher volume operations will require more powerful or multiple pumps to handle the increased flow. The total dynamic head the pumps need to overcome, including lift and pipe friction, must also be accounted for based on dewatering depth.

4. Pump Location

The best place for the pump will depend on your particular wellpoint dewatering system and site. The pump should be located near the extraction point as possible to save on pumping costs, but not so close as to cause damage from vibrations. The pump should also be located above the water table. If the pump is below ground at any point, it will draw air into the system through a check valve and cause moisture problems. 

To find out more about the best practises for installing your wellpoint dewatering system, chat with a dewatering pumps specialist today. They'll be able to help you determine the best location for your pump, as well as any other questions you have about water extraction systems. 

For more info about wellpoint dewatering systems, contact a local company.