Revolutionising In-Pit Dewatering

Mine dewatering is very dynamic, especially in a pit environment. 

Not only are the groundwater conditions constantly changing within the pit, but also the mine plan, blasting plan and dewatering plan continue to change. 

This continual change requires a safer, quicker way of installing and removing submersible pumps and riser-main for dewatering, which was the main motivator behind Australian Groundwater Solutions (AGS) designing and developing their Dynamic Dewatering Unit (DDU).

The unit provides complete flexibility, eliminating the need for fixed infrastructure and reduces capex costs over time according to AGS Managing Director Dwayne Moppett.

“Coming from a mining and groundwater background I could see the amount of wasted fixed dewatering infrastructure and thought why can't the equipment move with mine progression and not be scrapped?” Mr Moppett said. 

“There are a lot of companies manufacturing mobile dewatering trailers which are a fantastic product. But here at AGS we wanted to take it one step further and design and develop the complete package.”

The traditional methods of installing a submersible pump and riser-main into a bore is a high-risk activity, with dangers including entanglement and crushing, working in the line of fire, manual handling and working under suspended loads. 

The DDU eliminates the risk of these activities, with a safer process while dramatically reducing the time it takes to install and remove a submersible pump and riser-main.

The system also reduces the number of personnel required, with just one operator needed compared to three in traditional methods of in-pit dewatering. 

“This unit is an all in one install and removal dewatering machine,” Mr Moppett said.

“This piece of machinery will eliminate the need for multiple pieces of equipment and personal when installing and removing submersible pumps and riser-main. 

“For example, you will no longer need a crane and driver, no need for a protection cage and eliminating the need for an install and removal trailer for flexible riser-main, and less personal.”

The DDU's units are powered via a generator trailer, with a range of starting options to suit client requirements.

The units are available with three different designs, including fixed to the back of a truck, a platform with hydraulic legs or trailer mounted. 

They also offer radio remote control with a manual override option, booster pumps and a range of options to suit most client needs.

For more information about the DDU’s please contact Dwayne Moppett at This email address is being protected from spambots. You need JavaScript enabled to view it., call 0418 900 286 or visit

latest news

Green light for Gruyere pipe

Work is expected to begin next month on a $180 million pipeline to pump gas from the Eastern Goldfields to the remote Gruyere gold mine 200km east of Laverton, after pipe owner APA Group secured final approval from the State Government to go ahead.

Read more

Lionstown focus on lithium

Minnow explorer Liontown Resources has relaunched a campaign targeting high-grade lithium mineralisation at its Northern Goldfields-based Kathleen Valley project in an attempt to firm targets for the rising commodity.

Read more

Breaker keen for early start

The owner of a new greenfields gold development east of Kalgoorlie-Boulder says it could enter production early after posting high recoveries in metallurgical test work.

Read more

Focus on Three Mile Hill

Chinese-backed gold miner Focus Minerals is getting closer to a potential restart of its Coolgardie gold operations, starting the process to return power to its Three Mile Hill processing plant and closing in on the sale of the unwanted Jasper Hills project near Laverton, Western Australian.

Read more

DRA acquires Australian firm

Privately-owned South African engineering services group DRA has agreed to acquire Australia’s Minnovo Global for an undisclosed sum, with the transaction expected to be completed this quarter.

Read more

NSW coal project wins Government backing

The Wallarah 2 underground coal project has been approved by the New South Wales Government, despite ongoing community opposition on the state’s Central Coast.

Read more


industry insight

The far reach of battery tech

Not that long ago it was described as ‘flying under the radar’, but as the electric vehicle (EV)

Products & Technology

Revolutionising In-Pit Dewatering

People & Projects

Contract win spurs Pacific Industrial Company 

Occupational safety & health

Organic growth spurs safety app success 


All work, all play for Sentient

A first person shooter first helped Sentient Computing realise the potential of video game technology.

Read more