Handy, Trash, Diaphragm Pumps

Deal to nuisance water

Our range of portable trash, diaphragm and handy-sized submersible pumps work well when dewatering is intermittent or water, sludge or waste volumes are low. They will deal to groundwater, sludge or abrasive liquids with solids in a range of civil, quarrying or mining or municipal applications.

Ease of use

Move fluid fast

With self-prime or no-prime options and electric or petrol drives, our handy-sized pump range is designed for quick set-up and operation.

Reliability

Built tough to last

These pumps work hard. They endure frequent use in contaminated, debris-heavy water, so we choose brands with a reputation for durability.

Overview of our Handy, Trash, Diaphragm Pumps

Caffini Electric Diaphragm Pumps

Designed for high flow, low pressure situations where transfer of thick slurries is required.

Size: 50mm - 152mm
Max Flow: 830L/min
Max Head: 15m
Max Solids: 60mm

View brochure

Caffini Petrol Diaphragm Pumps

Designed for high flow, low pressure situations where transfer of thick slurries is required.

Size: 50mm - 102mm
Max flow: 520L/min
Max head: 15m
Max Solids: 60mm

View brochure

Trash Pumps Caffini manufacture a fast, self-priming centrifugal trash pump with tool-free maintenance. Transfer contaminated liquids with solids up to 40mm.

Size: 76mm - 102mm
Max flow: 144m³/hr
Max head: 32m
Max solids: 40mm

View brochure

Flexi-drive Pumps

A lightweight, portable dewatering pump with rugged frame, protected coil, cast-iron impeller and 3-dog coupling for safer handling. No priming required.

Size: 76mm (3")
Max flow: 1100 l/min
Max head: 26 m

Grindex Handy Submersibles Run-dry indefinitely, SMART motor technology, supreme efficiency. Grindex submersibles are tougher and lighter than most.

Size: 50mm – 152mm (2”– 6”)
Max flow: 350L/s
Max head: 200m
Max solids: 11mm

Proril Handy Submersibles

Compact, lightweight Proril SMART and SAVVY series pumps provide reliable low-volume dewatering for domestic and small construction applications.

Size: 25mm – 50mm (1”- 2")
Max flow: 110L/s
Max head: 90m
Max solids: 35mm

GALLERY

In the field

Here are some examples of our solutions being used.

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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 CadwalladerCatchment Worker

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

Jacob Warmsley Project Manager

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

Peter FisherDirector

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

DaveOps Director

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

Rob KerrProject Director

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

Let’s sort your fluid management needs
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Ben Beatson
Sales Engineer

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Gerhard Rudolph
Hire Account Management

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Brent Petrie
Sales Engineer

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Questions

FAQ

At Prime Fluid Management, we understand that every fluid management challenge 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.

What do drainage submersible pumps do on site?

Drainage submersible pumps remove or transfer unwanted water from a wide range of environments — from construction and mining sites to tunnels, basements, and flood zones. Designed to operate fully submerged, they eliminate the need for priming and reduce the risk of cavitation. Their ability to handle water with suspended solids ensures reliable performance in demanding conditions.

Can these pumps run dry?

Yes — selected Grindex models feature advanced run-dry capability, with built-in thermal protection and a modular design that simplifies maintenance. This not only protects the pump during unexpected dry runs but also contributes to their reputation as one of the most reliable and durable drainage submersibles on the market - ideal for long-term, low-maintenance performance in demanding environments.

What size and performance range do you cover?

Across the ranges shown, inlets span roughly 2–10 inches with max flows listed up to about 350 L/s and heads up to 200 m on certain models. Check the overview tables or download the Dewatering, Bypass & Sewage Pumps Guide to match size, head, flow and solids to your job.

Do you supply and support submersibles NZ-wide?

Yes. Prime Fluid Management operates across New Zealand with six branches, a warehouse and servicing workshop. We provide equipment, service and support nationwide.

What’s the difference between drainage and sewage submersibles?

Drainage units focus on dewatering clean to lightly contaminated water and managing site water levels. Sewage units are engineered to move raw or solids-laden wastewater, with cutter, vortex or single-channel impellers to reduce clogging and pass larger solids. View our range of sludge & slurry submersibles here

Agri Pumps

Stormwater

Industrial

Discharge Compliance

Handy, Trash & Diaphragm Pumps

Deal to nuisance water

Move fluid fast

Built tough to last

Overview of our Handy, Trash, Diaphragm Pumps

View our full dewatering, bypass and sewage pump range.

In the field

Read Dewatering, Bypass & Sewage articles

See other Dewatering, Bypass & Sewage Pumps

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

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

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

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

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

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

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Equipment • Expertise • Results

Agri Pumps

Stormwater

Industrial

Discharge Compliance

Handy, Trash & Diaphragm Pumps

Deal to nuisance water

Move fluid fast

Built tough to last

Overview of our Handy, Trash, Diaphragm Pumps

View our full dewatering, bypass and sewage pump range.

In the field

Read Dewatering, Bypass & Sewage articles

See other Dewatering, Bypass & Sewage Pumps

Wellpointing solutions

Drainage Submersibles

High Head Pumps