Freephone: 0800 400 365 • Turn key installation • Small foot print • Fully automated • Low running costs • Low rate / low depth application • Low man hours to operate • No smell • 60% fresh water savings • Fully patented system headof ce@cleangreenef uent .co.nz www.cleangreenef uent.co.nz nfd22kwClean Benefits of the system A Clean Green E luent Company system at Sharon and Willie Muir’s 125-hectare dairy farm in Tuturau is demonstrating how innovative technology can deliver both environmental bene its and operational simplicity for New Zealand's dairy sector. The Muirs, who milk 315 cows, have successfully implemented the fully patented Clean Green E luent Company solution that eliminates the need for large storage ponds through advanced weeping wall technology and automated low-rate application. “I have known Lindsay for 20 years and knew I could trust him to put in a very good system,” explains Willie. “I even put it in without going to look at one as I knew with Lindsay it would be a great system.” The decision to install the Clean Green system was driven by practical considerations and a desire to reduce maintenance. “We had a mechanical separator we’d had problems with in the past and it just wasn't performing,” says Willie. “We wanted to get away from cleaning out stone traps and I knew a weeping wall would simplify our system and reduce labour and maintenance costs.” The Clean Green E luent System represents a signi icant INNOVATIVE TECHNOLOGY IN ACTION advancement in dairy e luent management, featuring a unique patented concrete-lined weeping wall that removes 35% more solids and nutrients from e luent than any other tested weeping wall system. The system is over 1,000 times cleaner than a solids press. The technology's core innovation lies in its ability to separate liquids from solids through parallel timber weeping walls, capturing the bulk of NPK nutrients in organic humus while allowing controlled application of liquid e luent at extremely low rates - as little as 0.25mm per 24 hours. “When I run my system the water is a really light colour now compared with my previous system so I can tell the Clean Green E luent Company weeping wall separation system is doing a great job,” explains Willie. The system achieves signi icant fresh water savings with industry standards typically requiring 50 70 litres per cow per day for shed and yard washing while farms operating Clean Green E luent Company systems report average usage of just 15 20 litres per cow per day. For Willie and Sharon, the automated nature of the system has also eliminated daily stress and operational complexity. “It discharges the e luent daily, eliminating concerns about ponding or runo . The technology has performed lawlessly, and on inspection it’s clear that Lindsay has designed the system with farmers in mind as it’s so straightforward and easy to use.” The system's monitoring requirements demonstrate its user-friendly design. The system uses two tanks with loats to show the levels. One tank should always be empty and the other full. “When I see one loat up and the other down, I know everything is running exactly as it should. It’s that simple - no more last-minute stress or unexpected full ponds for us.” Willie has also already observed tangible improvements in pasture quality. “I believe the cows are grazing the paddocks better because the grass quality is better,” says Willie. “The system's low-rate, low-depth application ensures all nutrients remain in the root base, with nutrient loading signi icantly reduced compared to traditional systems. I also anticipate long-term soil health improvements from putting a better quality e luent product on.” Clean Green E luent Company will be exhibiting at the NZ Dairy Expo at Bedford Park, Matamata, on February 18 and 19, 2026 at site F44. The Weeping Wall lined with concrete during its construction at Willies.
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