Rainwater Harvesting

If capturing and using your rainwater is what you’re after, then Think Water can help. Our stores have a wide range of water storage and harvesting options and advice available.

Typical uses might be for recycled water in your toilets and laundry using a rainwater switching system such as a Davey Rainbank, or rainwater use for your garden. You may need water storage for drinking or livestock.

No matter what your use, Think Water has a combination of solutions to suit. Tank sizes and shapes vary from a few hundred litres up to 500,000 litres for liner tanks.

At Think Water we design, supply and can install a range of supporting equipment to make sure your tank water system is optimised for your requirements. This includes pumps sized to suit your needs. Not all pumps are the same and will vary depending on your site, location and use.

Other pump options include products such as the Davey Rainbank which switches from mains water to tank water, which is ideal for use in recycled water systems supply your toilets and laundry. This system dramatically reduces water use over time and allows you to make best use of available rainfall.

You may also need filtration and connection systems - we supply a full range of options from whole of house filtration, including UV and 2 stage filtration systems to make sure your drinking water is clean and free of contaminants, organic matter and bacteria.

Tanks should also be fitted with first flush systems to ensure that the first few millimetres of rainfall from your roof are not washed into your tank. This protects the tank from a build-up of sludge over time, but more importantly protecting the water from roof contaminants such as dust, animal droppings and dead birds. In rural areas dust might contain higher levels of fertiliser and pesticide, while city area dust will have other pollutants from cars and trucks.

Tank Location & Site Preparation

When considering where to locate your tank you need to think about the inlet and outlets to ensure ease of use and ability to gain access to the top of the tank if required.

Site preparation is also important and there is some flexibility with plastic tanks, although larger plastic tanks need a level site. Large liner tanks site preparation is critical as these are put together like a Mecano set and variation in ground level can lead to the liner stretching and splitting.