Dave Miller, an experienced environmental engineer, is one of New Zealand’s leading independent authorities on septic tank and sewage treatment systems
With over 40 years of hands-on and technical experience, Dave has seen it all — from aging tanks on coastal sites to brand-new lifestyle blocks with complex soil and septic system challenges.
Dave has pioneered new and innovative sewage treatment technology to cover the multiple sewage system failures that began occurring in the 1990s - 2000s as sewage systems installed in the 80s and 90s failed en masse. He has imported revolutionary sewage system treatment technology from USA and designed and manufactured a new range of treatment systems specifically for this technology which surpassed the crude treatment systems that existed in NZ at the time. Dave has also presented papers at National Conferences on this new technology and how it could prevent the systemic sewage system failures being experienced and remedy the current system where possible.
From schools and marae to tourism ventures, rural factories, and small subdivisions, Dave has designed systems for all sorts of challenging sites — experience that continues to inform the practical, effective advice he offers today.
Dave now specialises in residential and lifestyle septic systems, and is constantly in demand from rural house owners wanting advice on how to fix failing sewage systems (they only last 10 - 15 years if you’re lucky) and new owners wanting advice on which system is the best value for money for their new house.
Contact Dave
for straightforward, independent advice about your septic system.
Trusted - Independent - Practical
Unlike system agents or installers, Dave has no financial ties to any brand or product. He doesn’t sell systems, install them, or take commissions. His advice is fully independent, based entirely on your site conditions, your soil, your usage, and what will give you the best outcome long term.
Whether you need a septic system design for a new home build, or you need expert septic tank advice about how to fix a foul-smelling system installed just a few years ago, Dave’s depth of knowledge and no-nonsense approach ensures you’ll get straight answers and clear guidance. While the cost of a new septic system is important, talking to Dave ensures every dollar you spend will be a wise investment.
Why you need Dave Miller
Recognised expertise
Dave’s knowledge is sought after by industry professionals and homeowners alike. You can rely on his expertise.
Proven results, not promises
Dave's advice, designs, and solutions are backed by decades of in-field performance, not just theory or sales claims.
Custom advice, every time
No two sites are the same — and neither are Dave’s recommendations. Each one is fully customised to your needs.
