Search

BWT60-COMBO-MG

2 x 30000 litre Water Tanks Combo Incl. Accessories

Colour
Mist Green
Heritage Green
Light Grey
Slate Grey
Beige
Black

The 60,000 Litre Plastic Water Tank Ultimate Combo (2 x 30,000L) is New Zealand’s ultimate off-grid rainwater storage system. Featuring two of our heaviest-in-class 30,000L tanks, a high-flow Italian DAB pump, protective pump house cover, a high-capacity 20" Jumbo 2-stage filtration + 55W UV steriliser, and a full twin-tank connection kit.

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 →

Twin 30,000L Heavy Duty Water Tanks (60,000L Total Capacity)

Includes two (2) 30,000 Litre Water Tanks manufactured in Auckland on our custom rotational moulding rig. Each tank is engineered with New Zealand’s heaviest standard shot weight (500kg per tank / 1,000kg total resin) for maximum wall thickness and fully self-supporting dome roofs. This twin setup provides massive 60,000L reserves to satisfy rural council requirements and large households.

  • Full 20-Year Warranty: Repair or replacement on both tanks (not pro-rata).
  • Burying Depth: Both tanks are engineered to be buried up to 700mm in ground.
  • UV Rating: Formulated with long-term UV20 protection against harsh NZ sun.
  • Standard Outlets: Heavy-duty 50mm BSP brass outlets on both units.
  • Access & Security: Dual screw manhole access with removable lids.
  • Material Compliance: AS/NZS 2070 (Food Grade), AS4020 (Potable Water), AS/NZS 4766 Certified.

View single 30,000L tank specifications →

Included High-Capacity Combo Accessories Package

This twin-tank package is upgraded with high-flow filtration, larger connection kits, and heavy-duty pressure equipment designed to move and treat large volumes of water smoothly.

High-Flow Italian DAB Pump

Commercial-grade Italian DAB water pump engineered for reliable multi-tap pressure across larger homes, two-storey dwellings, and farm washdowns.

  • High-capacity flow rate for demanding household setups
  • Self-priming design with built-in union connections for easy servicing

View DAB 132 Jetcom Water Pump →

20" Jumbo 2-Stage UV Filtration System

Upgraded 20" x 4.5" Big Blue dual housing system designed for higher flow rates without pressure drops, paired with a 55W High-Output UV Sterilizer.

  • 20" 20-micron pleated pre-filter + 20" 1-micron polyspun filter
  • Removes fine sediment, bad taste & kills 99.9% of bacteria and viruses

Explore 20" UV Filtration details →

Big Water Tanks Pump House

Heavy-duty polythene protective cover designed to shield your DAB pump from harsh NZ weather and reduce motor operational sound.

  • Weatherproof UV-stabilised material
  • Matches seamlessly with your tank setup

View Pump Cover details →

Twin Tank Suction & Linking Kit

Includes heavy-duty Hansen poly fittings, valves, and flexible hose to link both 30,000L tanks together and feed directly to the pump inlet.

  • Heavy-duty 32mm suction hose & Hansen isolation valves
  • 50mm BSP reducing fittings to 32mm & Hansen poly fitting included

View Hose Kit details →

Need a Custom or Upgraded Solution?
Setting up a large farm system or off-grid homestead? We can easily swap or upgrade components in this twin-tank package. 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 →

Water Tank Photos

Warranty & Installation Downloads

Market-Leading 20-Year Full Warranty

Both tanks carry our market-leading Full 20-Year Repair or Replacement Warranty engineered specifically for New Zealand weather conditions. Unlike some competitors offering pro-rata coverage, our warranty does not lose value over time.

Ensure your site preparation meets warranty conditions by downloading our official guide below.

Download Installation & Warranty PDF

System Specifications

Total Capacity 60,000 Litres (13,200 Gallons)
Tank Dimensions 2 x (3.78 m Diameter x 3.10 m Height)
Combined Weight 1,000 kg (500 kg per tank)
Outlet Size 50mm BSP Brass Outlet per tank
Filtration Unit 20" Jumbo Dual Housing + 55W UV
UV Protection UV20 Rated Long-Life Resin
Material Compliance AS/NZS 2070 (Food Grade), AS4020 (Potable Water), AS/NZS 4766

Delivery & Rates

We deliver tanks across the North Island using specialized truck & trailer or 4x4 off-road rigs from Glendene (Auckland) or Taupo. Delivery charges are per tank:

0 – 100 km $150.00 incl. GST per tank
100 – 200 km $200.00 incl. GST per tank
200 – 275 km $300.00 incl. GST per tank

Note: Delivery is to the gate. Drivers will endeavor to place tanks in position if site access permits.

Frequently Asked Questions

How are the two 30,000L tanks linked together?

The included Hansen twin-tank kit connects the bottom 50mm outlets of both tanks together with a flexible suction line and isolation valves. This allows water levels to equalize naturally between both tanks while allowing you to isolate individual tanks for maintenance if needed.

Is this 60,000L combo ready to plug straight into my home?

While this combo includes both 30k tanks, the high-flow DAB pump, 20" UV Filtration System, pump house cover, and tank connection kits, it is not pre-plumbed. Your plumber will provide final pipework connections from the pump to the filter housing and into your building line.

Looking for a pre-plumbed setup?
Ask about our Water Pump Box upgrade, which houses the pump and filtration pre-mounted and piped together in a weather-resistant enclosure.

Can I upgrade to a Variable Speed or Solar Pump for this 60k system?

Yes! We frequently customize 60,000L packages for rural and off-grid builds:

  • For Off-Grid Solar & Tiny Homes: Upgrade to the ultra-efficient DAB Esybox Pop with its 300W inverter drive.
  • For Constant Pressure across Large Homes: Upgrade to the DAB Esybox Mini 3 or full-sized DAB Esybox for whisper-quiet variable speed performance.

Contact us on 0800 Big Water to customize your pump package.

How deep can I bury these 30,000L tanks?

Both 30,000L tanks can be buried up to 700mm deep in the ground while retaining their full 20-Year Warranty. Please follow our site prep guide for base compaction and drainage requirements.

How does your 20-Year Warranty work compared to competitors?

We provide a Full 20-Year Repair or Replacement Warranty on both tanks. Unlike some competitors offering pro-rata warranties (where coverage shrinks each year), our warranty maintains 100% cover for the full 20 years.

Customer Reviews

Based on 8 reviews
100%
(8)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
A
Andrew H
Great value option

Did a fair bit of research, with the 2x 30,000L combo package, this was still the best value for money option available.
Great help from the office with adding extra items to my order, and very speedy delivery and friendly and helpful delivery driver. Also extra credit to him for dealing with a lovely crisp frosty Waikato morning, bet he wishes he'd gone for an afternoon delivery!

T
Thinus Oberholzer
New water tanks

I am writing this review to express my appreciation for the excellent service I received regarding my recent order of two 30,000-liter tanks.

The entire process, from placing the order to delivery, was handled efficiently and professionally. I especially appreciated the driver's willingness to visit my property beforehand to assess the difficult access route. This planning ensured that the delivery on the day went smoothly, and the tanks were dropped safely into place.

The suggested installation service using a Hiab from Translink was also perfect. My tanks are now installed and filling up. Thank you for making this a worry-free experience.

G
Greg
2 Tank Combo

We bought the 2 tanks and pump combo, paid our deposit to get it started then the rest just before delivery,
We are in Taranaki so we paid a little bit extra for the distance/delivery but still the best combo deal at the time
The delivery guy was awesome and I would use BWT again

D
Debra Peters
Easiest purchase ever

So easy from online order of 2 tanks,pymt, followed up quickly with email and delivery plan. Driver contacted to update delivery time, great communication, great service.
Very happy

P
Pieter
Excellent Service

Thanks for the prompt and excellent service and a big thanks to the delivery man, Callie for his efforts and excellent service.
Pieter