BWT30-Combo-MG
$5,295.00 NZD
$6,545.00 NZD
You save: 19% (
$1,250.00 NZD
)
All prices include GST
The 30,000 Litre Plastic Water Tank Ultimate Combo is New Zealand’s complete turn-key rainwater harvesting package. Built with our heaviest-in-class 30,000L tank, an Italian DAB JETCOM pump, protective pump cover, and a complete 2-stage filtration + 55W UV steriliser unit.
Water Tank Colours: Tank colours vary from screen to screen and may look different in natural lighting. Check out our real colour photos to get a better idea of actual shades by Clicking Here →
Manufactured in Auckland on a custom rotational moulding rig, our 30,000L water tank is built with the heaviest standard plastic shot weight (500kg) on the New Zealand market. Featuring a self-supporting dome roof engineered for extreme durability, it is designed for safe, clean drinking water storage.
This ultimate package comes pre-paired with high-performance water pressure, treatment, and protection equipment so your system is ready to connect to your dwelling.
Italian-engineered 440W water pump delivering up to 45L/min. Ideal for 3 to 4 household taps across up to 2 levels.
10" x 4.5" Big Blue dual housing with 20-micron pleated & 1-micron polyspun filters, plus a 55W High-Output UV Sterilizer.
Heavy-duty polythene protective cover designed to shield your DAB pump from harsh NZ weather and reduce motor operational sound.
Heavy-duty UV-stabilised Hansen poly fittings and flexible suction hose to connect your tank directly to the pump inlet.
Need a Custom or Upgraded Solution?
Every property is unique! We can easily swap or upgrade components in this package to suit your site. Looking for ultra-quiet constant pressure or off-grid solar compatibility? Talk to our team about upgrading to the DAB Esybox Pop (300W ultra-efficient variable speed), Esybox Mini 3, or full-sized DAB Esybox. Contact us to build your custom combo →
Unlike some competitors offering pro-rata coverage that loses value every year, Big Water Tanks provides a true Full 20-Year Repair or Replacement Warranty engineered specifically for New Zealand conditions.
Ensure your site preparation meets warranty conditions by downloading our official guide below.
Download Installation & Warranty PDF| Volume | 30,000 Litres (6,600 Gallons) |
| Diameter | 3.78 m (3,780 mm) |
| Height | 3.10 m (3,100 mm) |
| Weight | 500 kg (Heaviest on NZ Market) |
| Outlet Size | 50mm BSP Brass Outlet |
| UV Protection | UV20 Rated Long-Life Resin |
| Material Compliance | AS/NZS 2070 (Food Grade), AS4020 (Potable Water), AS/NZS 4766 |
We deliver tanks across the North Island using specialized truck & trailer or 4x4 off-road rigs from Glendene (Auckland) or Taupo:
| 0 – 100 km | $150.00 incl. GST |
| 100 – 200 km | $200.00 incl. GST |
| 200 – 275 km | $300.00 incl. GST |
Note: Delivery is to the gate. Drivers will endeavor to place the tank in position if site access permits.
While this combo includes all the major hardware components (the tank, pump, UV Filtration System, pump house cover, and suction hose), it is not a pre-plumbed unit. Your installer or plumber will supply the final standard house-side pipe fittings between the pump outlet and filters, and then route it into your property's main water line.
Want a completely pre-plumbed "plug and play" solution?
We offer a fully assembled upgrade! Check out our Water Pump Box, which comes with the DAB pump and UV filters already pre-mounted and piped together inside a secure, insulated enclosure—saving your plumber hours on site.
Absolutely! The standard DAB JETCOM pump included in this combo is a reliable, budget-friendly workhorse, but we frequently customize packages for customers with specific site requirements:
Contact our Auckland or Taupo teams on 0800 Big Water to swap out the standard pump for an Esybox solution tailored to your site.
Big Water Tanks can be buried up to 700mm in the ground while retaining their full 20-Year Warranty. Please ensure correct base compaction and natural site drainage according to our installation guide.
We provide a Full 20-Year Repair or Replacement Warranty. Unlike some competitors who offer "pro-rata" warranties (where the value depreciates every year), our warranty maintains 100% cover for the entire 20-year period.
Yes! Connecting twin 30,000L tanks gives you 60,000L of total capacity—ideal for large families, farm setups, or council compliance requirements. View our 2x 30,000L Twin Combo Package here.