Since 2012, Flexi Tanks NZ has been New Zealand's leading provider of flexible bladder tanks, supplying and installing over 800 units for farmers nationwide. Designed and manufactured in France by Labaronne-Citaf, the inventor of flexible storage and leading the way for 67 years. Our Flexi Tanks offer an innovative, council-compliant, and cost-effective solution for storing dairy effluent, wastewater, leachates, and other liquids. Built to exceed rigorous New Zealand standards and withstand harsh local conditions, they deliver a reliable, long-term on-farm solution.

With all forms of effluent storage, solid management is important. A Flexi Tank is equipped with the most mixing valves. It is the only tank on the market that allows for side and top mixing for effective solids management. 

Need to Store Dairy Effluent?

Proper effluent storage is essential during periods when irrigation or spreading is restricted, such as wet weather or regulatory limits. Flexi Tanks offer a flexible, safe & enclosed system ready store, and manage effluent, helping manage your effluent ready for its reuse as a nutrient-rich fertilizer.

Simply connect a Flexi Tank to your existing effluent pond or irrigation sump to store effluent when irrigation isn't feasible (e.g., during rain or restricted periods).

Superior Mixing for Effluent Management

Flexi Tanks NZ offers advanced mixing capabilities to ensure optimal effluent management. With more mixing valves and ports than any other bladder tank on the market, our tanks provide unmatched flexibility. For instance, a 500,000L Flexi Tank includes 8 side mixing valves and 11 top mixing ports, allowing easy agitation of contents using an effluent-spec pump from any point in the tank. Regular mixing is essential for effective effluent management, and here’s why:

• Reduces Solids and Sludge Buildup: Prevents accumulation for consistent tank performance.

• Prevents Crusting: Stops floating matter from forming a crust, ensuring smooth operation.

• Enhances Nutrient Distribution: Delivers uniform nutrient application during irrigation.

• Maintains Tank Capacity: Avoids capacity loss due to excessive buildup.

• Keeps Effluent as a Slurry: Maintains a consistent, manageable slurry for easy handling.

With Flexi Tanks, you get a reliable, efficient solution for superior effluent mixing and management.

Key Benefits of Flexi Tanks for Effluent Storage

Flexi Tanks stand out as a reliable, durable, and user-friendly option. Here are the main advantages:

• Mixing ports: Top and side mixing ports is the latest in mixing technology with to give the most access for stirring your tank.

• Environmental Protection: Enclosed design prevents leaks, evaporation, and contamination from pests, vermin, or airborne pollutants. KIWA certified for effluent compatibility, ensuring compliance with New Zealand regulations and minimizing contamination risks.

• Cost-Effective: Pricing from $16,500 +gst (100m3), affordable tanks and easy site preparation  keep costs low, Flexi Tanks are a depreciable asset and can be relocated (for sizes under 500m³).

• Durability and Longevity: UV stabilized, corrosion-resistant, and capable of handling a wide range of pH levels and chemicals found in effluent. Multi-layered rip-stop fabric withstands harsh conditions, with a life expectancy of up to 20 years.

• Safety and Compliance: Fully enclosed system eliminates drowning risks for people or animals—OSH compliant with no mandatory fencing required. Minimal maintenance needed.

• Flexibility and Convenience: Available in various sizes to match your needs. Rapid deployment (2-4 hours) with minimal site preparation. Can be rolled up and reused elsewhere.

• Nutrient Preservation: Maintains effluent quality for reuse as liquid fertilizer, leading to better pasture yields and reduced drought impacts.

• Peace of Mind: Proven track record with over 800 tanks nationwide, used by big-name companies in dairy, horticulture, and construction.