FAQ
Before buying
What is rainwater harvesting?
Rain water harvesting is the process of collecting and storing rainwater into tanks to use as a primary source of domestic water for your house, garden or farm.
What are the benefits of rainwater harvesting?
- Easy to maintain
- Reduce your water bills
- Healthier water for your plants
What are Aqua Tanks® made of?
All our Aqua Tanks® are made of food grade, UV resistant polyethylene. Aqua Tanks® are moulded in one piece and designed to ensure that stresses are contained within the patented ribbed walls and domed construction (NZ design patent 505190).
Do plastic tanks make the water taste funny?
Aqua Tanks® do not change the taste
What standard are Aqua Tanks® built to?
Aqua Tanks® are manufactured to the Australian and New Zealand water tank standard AS/NZS 4766:2006 and are independently certified by a professional engineer.
Delivery
How much is delivery on my water tank?
- Delivery is included in listed prices on ALL tanks across the North Island
- Tank deliveries requiring ferry crossings incur an additional delivery fee
- Freight costs of Pumps & Filtration products are quoted case by case
- If Pumps & Filtration items are ordered with a tank, there will be no freight charge
- Accessories have a flat rate charge of $19.95 across the North Island
- Accessories ordered with a tank incur no freight charge
Where do you deliver?
Aqua Tanks® delivers all across the North Island. We can travel across certain ferry crossings for additional cost.
Do you deliver to the South Island?
We are supplying Slimline 1000L, 10,000L & below sized water tanks into Nelson.
Call Mark on 027 291 0087 to check avaiability.
Do you export your tanks?
We can export our tanks to the Pacific Islands.
When will I receive my newly purchased water tank?
Please refer to our Lead Times where the most up to date information is available regarding time frames.
Installation
Can you install my water tank?
We only manufacture and deliver Aqua Tanks® however we do provide an in-depth installation guide for anybody that would like to install the tank by themselves. A registered plumber or drainlayer can also install your water tank.
Where can I install my water tank?
Depending on what your tank will be used for you can install your tank at the most convenient location for its use. The base the tank sits on is more important and must be flat with a bed of compacted Gap 7 or sand.
If you are laying a concrete base for your tank to sit on, the minimum depth should be 100mm, ensuring the sub-base is compacted prior to pouring the concrete.
How deep can I bury my water tank?
Our larger tanks (16,000L and above) can be buried 700mm deep.
How heavy are the Aquatanks?
Our tanks vary in weight as they vary in size, and weigh between 30kg to 500kg.
Maintenance
Whats the warranty on my water tank?
The warranties on Aqua Tanks® products are as follows:
- 10,000L – 31,000L Aqua Tanks: 25 Years Pro rata
- 295L – 5,000L Aqua Tanks: 10 Years Pro rata
- Urban & Slimline Aqua Tanks: 10 Years Pro rata
- All Underground Aqua Tanks: 5 Years Pro rata
- Accessories: 1 Year
*As of 1st January 2026
Where are the water tanks manufactured?
All our water tanks are manufactured at our factory in East Tamaki, Auckland.
