Get Down to Earth Drainage
Drainage
Work
See how OSET design and council-compliant wastewater systems are managed. Our process for rural and residential New Zealand properties. Read below for design to installation guidance.
Qualified and Approved
Down to Earth Credentials
Robin van der Lem is licensed, council-approved and insured for wastewater system installation, OSET design, effluent field replacement, stormwater drainage upgrades, water tank repairs and maintenance.
Robin, the owner and OSET Designer brings practical insight from years across drainage, onsite wastewater, and system compliance NZ-wide.
Registered drainlayer (E310953) and council-recognised OSET system designer for rural and residential, backed by full public liability insurance. Every project aligns with New Zealand compliance for safety and peace of mind.
Frequent Questions
Answers for Drainage Decisions
Do I need council approval for a wastewater system
Yes, council approval is needed for any new onsite wastewater system design or septic system installation in New Zealand. Approval is based on detailed OSET design NZ reports tailored for your property, making sure the solution fits both rules and local land conditions.
How long does an OSET design take to complete
From site visit to handing over final OSET design NZ reports, you’re usually looking at four working days. Timelines can shift a little with weather or complexity, but the aim is always prompt, clear progress, no waiting around.
Can installation follow OSET design
Absolutely. After OSET design is council-approved, I’ll take care of full installation—drainlaying, septic tanks, and everything else needed for a compliant, reliable rural wastewater system. It’s the complete end-to-end approach.
What areas covered
Down to Earth Drainage works nationwide, delivering OSET design NZ, site assessments, and drainage system installs for properties all across the country, whether you’re in the North, South, or anywhere in between.
How to tell if a septic system needs servicing
If drains slow down, smells creep in, or your yard is soggy around the tank, servicing may be due. Proper checks and scheduled maintenance keep council-compliant wastewater systems safe and stress-free.
Down to Earth Approach
Experience the Down to Earth difference every step ahead
Getting septic or drainage work done in New Zealand shouldn’t feel stressful or full of guesswork. As an approved OSET system designer, I don’t just design your wastewater system, I manage the lot, from first phone call to tidy sign-off. No cutting corners, just work you can value with practical solutions alongside clear paperwork.
Step by Step
The General Process
Start With Assessment
Every job begins with a down-to-earth chat about your property and project. The process kicks off with site assessments and soil testing, crucial for any OSET design NZ project. By understanding the lay of your land, and the specific challenges, the path to a council-compliant wastewater solution becomes clear.
Soil Condition Matters
Soil evaluation helps determine which onsite wastewater system design is right for your property. This covers drainage, absorption rates, and the natural behaviour of your land. It’s not just box ticking, it’s about making sure the right system runs reliably for years in rural New Zealand settings.
System Design Phase
Once the soil and site are understood, it’s time for the design. Expect practical septic design tailored to both council requirements and real-life use. Reports and detailed plans are created, forming the backbone of a system that’s safe, compliant and truly suits your needs.
Council Approval
Navigating New Zealand council compliance can be tricky, but this stage gets handled with direct communication and detailed system reporting. Applications are prepared and submitted in line with local rules, so you’re legally set from the start.
Down to Install
With plans and consents ticked off, the installation moves ahead. All site works are delivered to a tidy standard and with care. Practical, hands-on drainlaying and civil works get everything in the ground and working as it should.
System Handover
Once installed, the wastewater system is commissioned and checked. You’ll get a straightforward walk-through, covering daily use, maintenance tips, plus full reporting needed for council sign-off.
Ongoing Servicing
Regular checks keep council-compliant wastewater systems working at their best. Septic system servicing and scheduled maintenance are all part of the full Down to Earth Drainage service.
Future Proofing Results
Great rural wastewater solutions are built to last. Materials, install process and servicing are all chosen to keep things simple, robust and future-ready, whatever the weather throws up.
End to End Support
From first chat to final check, everything’s handled by one grounded guide. The process is made easy, mistakes are avoided, and you get practical support right through.
How it Began
Local roots and proven expertise
I founded Down to Earth Drainage after seeing a real need for practical and trustworthy OSET design NZ and rural drainage solutions. With years of hands-on experience and council-approved credentials, my focus has always been on making complex systems simple and reliable, whether you’re on a rural block or a residential site. Every job is a chance to bring a straight-talking, tidy approach. Site care, transparency, and compliance aren’t just buzzwords here. They’re the standards I live by, so every wastewater or septic design is safe, effective and built for the long term.
– Owner and Founder, Robin van der Lem
Various Service Options
What you receive
Each solution is based on practical experience across rural and residential jobs since 2022. Get council compliant OSET design and wastewater systems built to suit your property, climate and soil.
Site preparation
Start with a site assessment and thorough soil testing for OSET design NZ. This step ensures your design fits your land and council requirements from the ground up. Expect clear, detailed reports based on what’s actually there.
Custom system design
Your solution isn’t off-the-shelf. Designs are tailored so your new wastewater or septic system is efficient, low-maintenance, and meets strict council compliance every time. All documentation is provided for council approval.
End-to-end delivery
Peace of mind from start to finish. The service covers installation, tidy site standards and OSET council sign-off. You don’t need to manage separate trades, everything’s handled, including future servicing and system support.
Workmanship promise
Practical know-how and attention to detail underpin every install. You can count on a job site that’s left neat and all work clearly explained before sign-off. Down to Earth Drainage stands behind each project.
Septic install confidence
Installation includes the supply and siting of tanks, connection to the home, testing and handover walkthrough. Every system is designed for easy future maintenance and built with NZ conditions in mind.
Support ongoing
Service doesn’t stop at install. Each package includes advice for best use and aftercare, with options for ongoing maintenance or emergency repairs if needed. Straightforward support, whenever you need it.
Get in Touch Now
Start your Down to Earth Drainage
Ready for a design or just have a few early questions, pick up the phone or send an email and I’ll talk you through it.
022 5979 263
info@dtedrainage.co.nz
Pāpāmoa, Tauranga,
3118, New Zealand
Week Days:
7:00am – 5:00pm
Saturday & Sunday:
By appointment only
