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Wellpoint Dewatering Services

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Wellpoint Dewatering: Your Solution for Dry Excavations

Wellpoint dewatering is an innovative technique to lower the groundwater table, creating a safe and dry environment for your excavation projects. At Pinnacle Hire, we specialize in installing a network of wellpoints around your site, efficiently pumping out water to keep your project on track. This method is particularly effective in sandy conditions.

Complete Water Solution

Pinnacle Hire is not just equipment rentals. We are your one-stop shop for advanced water treatment, storage, and pumping. From assessment and setup to ongoing monitoring, we handle it all.

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The Right Equipment, Every Time

Do not waste time searching for the perfect equipment. Our experts ensure you get the low-hour, fully-maintained systems you need to get the job done efficiently.

Simplified Water Management

Focus on your project, not water worries. Pinnacle Hire takes care of delivery, installation, and even after-service support. We streamline your water management so you can focus on what matters most.

Groundwater Control for Diverse Projects

Wellpoint Dewatering, also known as spear point dewatering, is a technique used for lowering the groundwater table so that safe excavation can be carried out in a dry environment. A wellpoint dewatering system would typically be installed prior to excavation commencing and involves a series of 40 to 50mm wellpoints, in varying lengths, installed around the perimeter or adjacent to the area to be excavated.

The wellpoints are connected to a header pipe via transparent flexible hoses, commonly known as swingarms.  The main header pipe is then connected to the suction side of a dewatering pumpset.  Most often the dewatering pumpset would be a piston style pump, due to its’ excellent air-handling capacity and very low fuel consumption.

The water is then pumped through a treatment plant, primarily to reduce sediment and turbidity levels.  In instances where groundwater is impacted by the presence of acid sulphate soils, pollution or other factors, the pH can be corrected and other contaminants removed and/or treated as necessary to ensure compliance with environmental regulations, before being discharged to the local stormwater network,  trade waste or via infiltration basin.

Wellpoint dewatering is most commonly used in the construction phase for basement excavation, pumpstation, bridge piers, abutments, pits, underground utilities, etc.

Conquer Water, Conquer Your Project

Our wellpoint dewatering system ensures you maintain control over groundwater, allowing you to:

How it Works

  1. Site Assessment: We analyze your project requirements and soil conditions.
  2. System Design: Our experts design a custom wellpoint layout for your site.
  3. Installation: We install 40-50mm wellpoints around the perimeter of your excavation area.
  4. Connectivity: Wellpoints are connected to a header pipe using flexible “swingarms”.
  5. Pumping: A high-efficiency piston pump draws water through the system.
  6. Treatment: Water undergoes treatment to reduce sediment and adjust pH levels if necessary.
  7. Discharge: Treated water is safely discharged according to local environmental regulations.

Expert Advice and Support

We are committed to providing “fit for purpose” solutions for every water treatment and pumping challenge. Our highly trained and experienced staff offers industry-specific advice and extensive product knowledge to ensure you get the most appropriate equipment for your project.

Industry Experience

We have a proven track record of success in various sectors, including:

  • Infrastructure / Civil Construction
  • Mining & Quarries
  • Municipal & Water Authorities

Quality Assurance

Our commitment to quality is reflected in our ISO certifications (ISO 9001, ISO 14001, and ISO 45001). You can be confident of a professional experience whenever you partner with Pinnacle Hire.

Rental Package Inclusions

Compact Dewatering Drilling Rig

These new rigs are custom-designed and engineered for installation of wellpoint spears, allowing the holes to be drilled and flushed concurrently, with the one machine in a single pass.  The Pinnacle Rig puts safety at the forefront of the works, by removing the industry ‘accepted’ risk of having operators right beside/under the suspended load of the jetting tube.  This achieved through unit being radio-remote controlled, meaning the operator can keep well clear during operation.

It is also a very compact machine, making suitable for sites where access is a challenge and it can be easily craned into basement excavations, weighing only 2400kg!

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📍 Where to Find Us

Whether you’re planning a visit to our headquarters or seeking an on-site consultation, we’re always within reach. Discover our convenient location and connect with our expert team to ensure your project’s success. At Pinnacle Hire, we’re not just a service provider; we’re your partner in efficient water management.