Wastewater Design tailors onsite wastewater systems specific to your site, your preferences, and Council requirements. We provide a quality, cost-effective option for domestic, commercial and remote on-site wastewater disposal. Wastewater Design specialises in non-chemical, low maintenance systems that treat effluent to a safe level to return to our environment by designing systems that use ecological process such as evapo-transpiration and natural bacterial treatment or those designed to... Read more

Environment Technology (ET) is the NZ-wide distributor of AES (Advanced Enviro-Septic™) - the long-term, low-cost answer for onsite wastewater treatment systems. AES is installed after a standard septic tank in a bed of 'system sand' and passively purifies wastewater to Advanced Secondary standards. The system can be retro-fitted and can be configured from municipal installations to residential homes. Over 400,000 installed worldwide. 99% performance with no issues. More than 250 in New Zealand... Read more