Welcome to Williams Engineering (2011) Ltd

At Williams Engineering, we know that effective and efficient farm dairy effluent disposal systems takes time to plan, install and manage, but that time spent is recovered by the returns gained through better use of the dairy farm effluent and a user-friendly system.

With 35 years experience, Williams Engineering (2011) Ltd is the leader in dairy farm effluent machinery manufacture and Williams Effluent Systems are time proven, user friendly and cost effective.

To find out more about how Williams Engineering can help you, browse our site or, for an obligation FREE quotation, contact us today.

FDE Pond Design & Construction Qualified

Williams recently attended a short course run by Infatrain New Zealand The course covered all aspects of effluent pond design... >> Read More

Recent system installations

Here is a few of the projects Williams have designed... >> Read More

We're Accredited!

We are now fully accredited farm dairy effluent system designers. The accreditation programme has been set up by Dairy NZ inconjunction with Irrigation New... >> Read More

GB Magnum

GB Magnum

Travelling Raingun / Irrigator

The new Williams GB Magnum travelling Raingun/irrigator is the first of its kind.... The patented design combines the performance of a static rain gun with the reliability of our GreenBack travelling irrigator to create an Irrigator that we believe surpasses all competing forms of effluent irrigation equipment. With a wetted width more than twice as wide as a traditional travelling irrigator,... >> Read More



Yardmaster Electric Pumps & Stirrers

Certified dealer for Yardmaster Pumps & Stirrers. 

Yardmaster® effluent pumps are designed to provide hard-working and reliable performance across the full range of applications within a Dairy Effluent System. From the initial ‘Transfer’ of solids from the cowshed or feed pad to the storage pond or tank through to Yardmaster’s range of high pressure Effluent Pumps suitable f... >> Read More

Pooma Pumps

Pooma Pumps

Pooma 65 & 80 Pump Range

The new Williams Pooma Pump range are specifically designed to handle effluent with a high level of suspended solids. The double chopper system finely macerates all fibrous material greatly reducing the chance of system blockages. The Pooma pumps are fitted with a mechanical seal lubrication chamber that will keep the mechanical seal lubricated if the pump was to run dry for a short period.

... >> Read More