Having rainwater around the garden is very convenient, during a dry spring it’s a must-have. Harvesting rainwater can help the environment in a number of ways. Some uses will also need additional filtration and purification before the rainwater is fit for human use. Plants prefer to be watered with stagnant water that had the chance to warm up.

Reduces Water Bills Rain Harvesting. Rain barrels capture water from the roof of your home, depositing the water into a catch basin or barrel.

Water is an essential need in the garden. Rainwater harvesting is a technology used for collecting and storing rainwater from rooftops, the land surface or rock catchments using simple techniques such as jars and pots as well as more complex techniques such as underground check dams.

Rainwater harvesting system, technology that collects and stores rainwater for human use.

Slowly it migrated to decentralized systems where a small community or property will harvest rainwater for drinking and cooking purposes.


Rainwater harvesting for use in the garden helps us to use water that would otherwise go to waste. This equates to around 240,000 litres (or 5 average sized swimming pools) each year. Rainwater harvesting has been practiced for thousands of years.

Storage of Direct Use. Rainwater harvesting will not only help individuals save on their water bills but can cut costs... 3. Plants prefer to be watered with stagnant water that had the chance to warm up.

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Systems range from rain barrels to elaborate structures with pumps, tanks, and purification systems.

Having rainwater around the garden is very convenient, during a dry spring it’s a must-have. A typical household can reduce their consumption of treated water from mains by between 30 and 50% by harvesting rainwater (according to the "Save the Rain Campaign").
What is rain water harvesting? We have been collecting rainwater for many years in different ways and places.

In contrast to harvesting dam water, which requires an extensive treatment process to ensure a quality fit for human use, rainwater harvesting requires simple but effective processes and equipment to prevent contamination and preserve water … Rainwater harvesting for use in the garden helps us to use water that would otherwise go to waste.

The water can be used to irrigate landscaping, flush toilets, or launder clothes and can even be purified for human consumption. In New Zealand, for instance, many small villages rely entirely on harvesting rainwater for all their water requirements. Various methods of using roof top rainwater harvesting are illustrated in this section.