How long can rainwater be stored for?

Most rainwater is safe to store for one week. If your system is secure, out of the light, and has no animal contact, it can hold uncontaminated water for longer.

How often should rainwater tanks be cleaned?

In New Zealand, it’s recommended to clean your tank at least once a year. However, if your system has bacteria control and filtration, it might need cleaning less often.

Do rainwater tanks need to be on concrete?

Yes, tanks need a solid base that can hold their weight when full. Concrete is a strong material ideal for this purpose. However, you can also place water tanks on similarly strong and level surfaces.

Do I need a pump for my rainwater tank?

Not necessarily. Most systems need a pump, but some gravity-fed options don’t. Consider where your tank will be placed, if it’s directly on the ground or underneath it, you might have to consider adding a pump.

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Rainwater Storage

- Rainwater storage tanks are a cost-effective and simple way to harvest rain which you then use on a daily basis instead of drawing from the mains supply. It’s a great safety net during a dry spell and helps lower your annual water bill. ArchiPro features only the best rainwater storage solutions in New Zealand from reputable professionals and suppliers you can trust.

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ArchiPro Products

A rainwater storage system needs to be flexible to fit into your space and meet your needs with respect to your water supply. While many products are available, there’s a vast difference between a high-quality choice and one that is not secure and able to hold water without bulging or leaking. ArchiPro features only the best rainwater storage options from trusted suppliers in New Zealand. They are an important part of a wider range of high-quality outdoor and landscaping products that you will find on ArchiPro.

Types of rainwater storage

There are many different types of rainwater storage solutions available in New Zealand. Some of the most popular ones include:

Retention tanks

Retention tanks are designed to hold onto rainwater until you use it. They can be slimline, round or square and are usually tucked away at the side of a property and collect any runoff.

Detention tanks

Detention tanks are ideal for temporary storage. They collect stormwater, managing its release slowly over time instead of all at once.

Underground system

While most storage options are above ground, you can put your rainwater tank underground to save space and keep your property attractive.

Industrial tanks

In New Zealand, you can also get industrial systems. They store larger amounts, have increased strength, and come with engineered adaptations for filtering and wastewater treatment.

The advantages of high-quality rainwater storage

High-quality rainwater storage means peace of mind. As the system will sit on your property collecting water, it needs to be secure and reliable. Quality materials that prevent bulging and leaks and don’t corrode are used to make the best tanks on the market. Flexibility is also essential. Slimline, low-profile and underground tanks mean you can find a solution that fits into your space without disrupting your use of the garden. Plus, tested and compliant systems manage all parts of the process from start to finish.

How to choose a rainwater storage tank that’s right for you

It’s crucial to consider your requirements before you buy a tank or system. First, review the space available for a tank. You can find square, round, slimline and underground options, holding 2,000 to 25,000 litres. Once you’ve measured up and know how much water you want to store, consider what type of tank meets your needs. A detention tank prevents your property from being hit with large amounts of stormwater at once. Retention tanks do the same but keep the water permanently until you use it.