Effluent Pump Mixers

Contractors and large-scale farmers, this is your solution if you’re after a versatile machine which can pump and shift slurry into tankers, between ponds or priming umbilical pumps, whilst delivering superior mixing capacity.


FarmChief Mega Mix Pump Mixer
FarmChief Mega Mix Pump Mixer
Slurry Jet Mixer
Slurry Jet Mixer- FarmChief
Storth Mega Mix Pond Stirrer - FarmChief New Zealand

Features and Benefits

Effluent storage, management and distribution is a booming segment of the industry. Demand is high for quality, versatile machines. The Storth Mega Mix and Storth Kestrel are the top-of-the-range machines that large-scale New Zealand farmers and contractors are demanding.

Excellent for severely crusted, large ponds and lagoons, the Kestrel and Mega Mix maximise pond movement through discharge cannons.

The Kestrel is designed for the large-scale farmers looking to extend their capacity, pump herd homes, and shift large amounts of slurry. The turbo impeller sucks in the slurry, finely chopping and mixing it before distributing it through the discharge cannon – an optional, remotely controlled rotating cannon is also available.

The Mega Mix is the contractor’s answer for all effluent needs. With a 4500m3 mixing capacity, hydraulic rotating pump, hydraulic rams for depth control and 6”or 8” side discharge pipes, the Mega Mix is a highly versatile machine. Fully galvanized, it’s reliable and long-lasting, too. Trailed options are available for those with deeper tanks, or for tanks with steeper banks.

Specifically looking to pump herd homes? Talk to us about our Storth Super Jet, with high-capacity short distance pumping and incredible agitation capacities.

Technical Specifications





HP Required




20400ltr output per minute mixing capacity





20400ltr output per minute mixing capacity





20400ltr output per minute mixing capacity






HP Required


125mm discharge pipe

13600ltr mixing capacity per minute

4 blade impeller



150mm discharge pipe

20400ltr mixing capacity per minute

4 blade impeller



175mm discharge pipe

29500ltr mixing capacity per minute

4 blade impeller



Doug’s view.

Caldwell Contracting have been leaders in their field for over 20 years, covering all aspects of agriculture from silage to wood chipping to cultivation and effluent management and spreading. You can learn more at www.caldwellcontracting.co.nz Doug Caldwell says the substantial family business, which operates out of Edendale, Southland, is constantly looking for innovations in effluent management and understand the needs of the dairy farmers they work with. “The Storth Mega Mix has been good. It’s safer and faster than others. And it’s definitely better than conventional stirrers. “We use it for mixing all ponds and also loading our transport tankers.”

- Storth Mega Mix

Eddie’s view.

Eddie Rabbitt is the manager of Rabco Ag – a large-scale contracting business based in Western Southland. Eddie reckons the Mega Mix provides a better result in terms of getting solids out of the pond, and with the canon breaking up the surface. The company uses the Mega Mix wherever they are called to a slurry job. “It works a treat.” He’s also putting in a good word for the FarmChief parts and technical support team. “It’s a good service and they get things done on time.” To see more details on Rabco, visit www.rabbitt.co.nz

- Storth Mega Mix

The Farmchief Range

Profiline Slurry Tanker

FarmChief Veenhuis Slurry Tankers 

The Veenhuis slurry injectors is one of the best and more affordable effluent recyclers in the world. 

FarmChief Veenhuis Slurry Tankers | View Now 

Enviro Spread Slurry Tankers

FarmChief Envirospread Slurry Tanker 

Boost on farm production by recycling nutrients. Envirospread slurry tankers are designed for farms of all sizes. 

FarmChief Envirospread Slurry Tankers | View Now 

FarmChief 4.5 Metre Speed Discs 

Ideal for the larger farmer or contractor wanting to improve cultivation speeds.

FarmChief 4.5 Metre Express | View Now

Get a free consultation and demo

Talk to a specialist in your area

Ben Abernethy

Southland & Otago - Salesman


Phone:021 241 8951

Grant Murray

Canterbury & Upper South - Director and Salesman


Phone: 03 349 4450

Matt McKillop - FarmChief Palmerston North

Matt McKillop

North Island - Salesman


Phone: 021 820 046