The Vortex Bladder – wherever you are in New Zealand we can work with you to help supply a fit for purpose dairy effluent system for your farm. Click here to see what we offer.

The Vortex Bladder can function as a water tank. The UV Protected flisble tanks are 100% made in France, who have over 80 years of experience in the industry.

Don’t hesitate to contact us in regards to bladders for other industries. Get in touch


Welcome to

Precise Dairy Effluent

Precise DE is a Waikato based Dairy Effluent company supplying advice, design, products, and installation nationwide. Owned and operated by Brian Nicholson and Allan Crouch they combine 40 years of experience in the New Zealand and international markets. Together they are trusted and recognised as extremely knowledgeable and  experienced in everything dairy effluent. Not limited to just the dairy effluent industry, Precise DE also offer flood pumps, and provide specialised products such as flexible tank solutions

  • Extremely well priced
  • Eliminates unwanted odours
  • Easy to relocate
  • Completely safe to work around
  • Installable on peat
  • Cost competitive to pond construction

Allan Crouch

021 909 463

Brian Nicholson

027 492 4046


A number of case studies from the jobs which Precise Dairy Effluent have completed over the country.

We have undertaken a vast amount of work all over New Zealand where no one job has the exact same requirements, every single Vortex Bladder install is completely unique. Whether you have a 400 cattle farm or a 4000 cattle farm, we will be able to help.

Have a read through the case studies below and if you’re interested, please get in touch with us.

Dave was looking to upgrade his dairy effluent system which included enough dairy effluent storage for his 700 cow farm near Tirohanga at Atiamuri in the Waikato.

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