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Three Tank Features to Assess When Buying an Above-Ground Water Tank for Your Home

Above-ground water tanks are easy to install because they do not require a lot of plumbing. An above-ground installation allows you to access the tank for regular cleaning and inspection. However, when choosing a tank for your home, it's crucial to assess various features that determine the tank's reliability, durability and aesthetics. Read on for three crucial features to assess when buying your water tank.

Water tank material

Above-ground water tanks are available in various materials, such as metal, plastic and fibreglass. However, they perform differently under varying conditions. Here is a material comparison guide to help you choose the best material for your tank:


Metal tanks are incredibly durable and sturdy, and they can withstand most inclement weather. They have a plastic inner lining that protects the tanks and maintains the quality of the water. On the downside, galvanised steel metal tanks can rust and corrode over time as the zinc wears away due to exposure to the elements.


Plastic tanks are resistant to corrosion and weather damage. They are safe, durable and easy to maintain. However, there are different types of plastic used for tank manufacturing. Consider investing in high-quality polyethylene, such as high-density polyethylene (HDPE). The tank should also be UV treated to prevent fading and block solar radiation.


Fibreglass is stiff and rigid, which allows it to withstand water pressure. It is durable and ideal for an above-ground installation. However, the rigid nature of the material makes it brittle and susceptible to leaks.

Light vs dark colours

Water tanks are available in various colours, such as black, blue, green, white and others. Before choosing a colour, consider the following factors:

  • Risk of algae growth: Light-coloured tanks allow light into the tank, causing algae formation. Dark-coloured tanks block sunlight, which makes them ideal for above-ground or outdoor installations. If you opt for a light-coloured tank, treat the water with chlorine to stop algae growth.
  • Water freshness: Dark colours absorb solar heat, which heats the water and makes it unrefreshing. However, if you don't intend to use the stored water for direct consumption, the temperature of the water shouldn't be a concern.
  • Outdoor aesthetics: Choose a tank colour that will blend into the surroundings. Black and white are standard water tank colours that work well for most homes.

Water tank shape

Water tanks can either be rectangular, spherical, square or cylindrical. Consider the available installation space when settling on a shape. Cylindrical tanks occupy a lot of space and are suitable for homes with adequate outdoor space. Therefore, if you have less space, consider a square or rectangle-shaped tank.

Assess these tank features when buying an above-ground water tank for your home. Contact an experienced contractor for proper installation of your new tank. For more information about water tanks, contact a local service.