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Which rainwater tank is ideal for rainwater harvesting?

Drought and water restrictions have driven market demand for domestic rain water tanks. Once a water-saving device saved for rural areas, rain water tanks are now part of the urban streetscape.

There are many different rainwater tanks used in rainwater harvesting. It is important to understand the advantages and disadvantages of the different storage tanks used.

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Polyethylene rainwater tanks.

These tanks are much-liked because of the various advantages they have.

• Polyethylene rainwater tanks can be used above the ground and even below the ground
• Polyethylene rainwater tanks are cheaper than other types of rainwater tanks
• Polyethylene rainwater tanks come in many different styles and sizes such as the popular slimline tanks, you don’t have a lot of room or the large round tanks.
• Polyethylene rainwater tanks are also UV resistant, and rather than being heavy and bulky are very light in weight and easy to carry around.

Fiberglass rainwater tanks

Fiberglass rainwater tanks are another popular type of rainwater storage tank.

• They are resistant to rust and chemical corrosion.
• Fiberglass rainwater tanks can also withstand extreme temperatures
• Fiberglass rainwater tanks are unfortunately more expensive than polyethylene tank.

Metal rainwater tanks

Metal rainwater tanks are manufactured from copper, stainless or colour polymer coated steel.

• These materials are usually rust proof and long lasting.
• They can withstand extreme temperatures without showing any signs of wear and tear.

Bladders & underground rainwater tanks.

New space saving bladders and modular storage systems have been developed in recent years and provide great water storage solutions, particularly for urban areas. These can be hidden away under a house or veranda and are more discreet

To be able to make a decision as to which is the best rainwater storage tank for your use for you, you will need to consider a few factors.
 When deciding the type of tank to install, consider:

• What ground surface preparation is required
•  Look at the sort of climate in the area for the tank to be installed
• Will the tank will be installed below the ground or above the ground
• What purpose the water is going to be used for. For example is it going to be for household use or for irrigation?
• What manufacturer guarantee is available

When you answer this question you will be able to make the ideal decision as to which is the best rainwater tank to use for your rain water harvesting storage purposes.