Dewatering, Bypass & Sewage Solutions | Prime Fluid Management

Peace of mind solutions

From temporary bypass and wellpointing to ongoing dewatering and sewage management, Prime Fluid Management is focused on keeping your productivity flowing. We serve civil construction, quarrying, mining and municipal sectors, delivering reliable and efficient solutions tailored to your project's needs.

We source the latest in pump technology - from Stage V, hybrid and electric engines to remote monitoring and smart system protection. We design with your site constraints, emissions targets and budget in mind, providing solutions that will optimise performance while reducing downtime and operational costs.

Site-specific selection

Right pump – right site

It’s not just the pump. It’s what the fluid is doing on site.

Changing levels or suction lift?
Self-priming pumps handle variability and keep working without constant intervention.
Deep or confined areas?
Submersible pumps are often the better fit.
Lowering groundwater across a wider area?
Wellpoint or staged dewatering setups come into play.

We work from the site conditions first – then match the setup to get the job done.

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Flow-critical reliability

Practical solutions for bypass and sewage work

Bypass and sewage jobs place different demands on equipment. Temporary bypass and stormwater bypass setups need pumps that start quickly, re-prime reliably, and keep fluid moving as site conditions change.

For sewage applications, solids, fibrous material, abrasive content, pipe layout, and vertical lift all affect pump choice and long-term reliability.

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"They brought their mechanics, they didn't just dump it and leave…. Couldn't have done it without them to be honest."

Mark CadwalladerHawkes Bay Regional Council

"This sort of unique system you set up is what sets you apart from others in the Market"

Jacob WarmsleyProject Manager - Brian Perry Civil

"I had an amazing experience with Prime at the Transmission Gully ... will recommend you guys anytime and anywhere."

Peter FisherDirector - Southern Sprite

"You guys had our backs from the get-go and stood beside us and persevered."

DaveOps Manager - Resin & Wax Holdings

"We called for a different type of solution…... We were pretty happy with what's been delivered"

Rob KerrProject Director - Waimakarri District Council

"Prime supplied us with the best solution for hire and the instant availability was what we needed… We certainly will be using them in the future"

Priscilla EllmersWastewater Supervisor - Veolia NZ

questions

FAQ

At Prime Fluid Management, we understand that every site brings unique considerations. Here, you’ll find clear, practical answers and expert guidance to help you maximise uptime, achieve regulatory compliance, extend equipment life, and implement the most effective solution for your site.

How does wellpointing differ from surface fluid dewatering on site?

Surface dewatering removes fluid after it has collected in a trench, pit, or low point – such as rainwater or localised seepage.

Wellpointing lowers the surrounding groundwater table before excavation begins. For larger preworks or excavations where ground stability matters, it provides more groundwater control than surface dewatering alone.

What makes auto-prime pumps suitable for bypass pumping?

Auto-prime pumps are dry self-priming pumps designed for temporary bypass and dewatering setups. They’re well suited to mobile applications where dirty fluid, with or without solids, needs to be transferred.

The BA Series primes quickly and can re-prime even after running dry. That makes it a practical option for bypass pumping where water levels and site conditions can change throughout the job.

What affects sewage pump selection on site?

Sewage pump selection depends on what’s in the wastewater, how the system is set up and what the pump needs to achieve.

It comes down to the wastewater, the pipework and the lift required. Solids, fibrous material, abrasiveness, temperature, and chemical content all affect how reliably a sewage pump will perform over time.

What’s the maximum head and flow rate for electric submersible dewatering pumps?

Prime’s electric submersible drainage and dewatering range includes options for both high flow and high head applications. The right pump depends on the site requirements, duty point, fluid condition, and how far or high the fluid needs to move.

For current submersible flow and head specifications, see our submersible drainage pumps.

Do industrial wastewater pumps require regular maintenance?

Yes. Pumps working in abrasive or solids-heavy wastewater need planned maintenance to support performance and reduce unplanned downtime. Reliability also depends on matching the pump to the wastewater and system conditions – which makes ongoing servicing and review an important part of long term performance.

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In the field

At Prime Fluid Management, experience talks. Take a look at some of our recent projects.

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