Water Tank Material Selection: What Are Your Options?
What type of rainwater tank should you buy? This is a common question for most people looking for a rainwater tank for their homes. These water tanks come in different capacities, shapes, colours and, most significantly, materials. The material of your rainwater tank can make a difference regarding how much you pay for it and how durable it will be. If you are shopping for a rainwater tank, here are the pros and cons of some of the top options to help you decide which type is the most suitable for your needs.
Plastic Water Tanks
Plastic or poly water tanks are the most popular types of rainwater tanks you will find on the market because of their many benefits. First, these tanks are lightweight, making them easy to transport and handle during installation. Compared to other alternatives such as steel and concrete, poly rainwater tanks are more cost effective. They are non-corrosive and come in a range of colours to suit your taste. Besides, since the colour is within the plastic material, your poly water tank will maintain its look for years. Plastic is a flexible material, which makes it possible to make the tanks in different styles and shapes to match your needs. However, unless it is UV- and-heat resistant, your poly water tank will break down with time because it is unstable against UV radiation. Also, in summer, the water will become hot, making it less likely to be used for drinking. You can counter both disadvantages by covering the tank with a brick wall, but this will come at an added cost.
Concrete Water Tanks
Concrete tanks are stronger and more durable than their plastic counterparts. However, some complaints suffered by these tanks are cracking and leaking. Concrete contains a component known as lime, which can leak into the water and make it unsafe for your consumption. Concrete tanks are often installed underground because they can withstand the weight of load-bearing lids and can be fitted under structures such as driveways. However, underground installation can be costly.
Steel Water Tanks
These tanks are an excellent alternative to their concrete counterparts because they are cheaper, lighter and easier to install. Unfortunately, steel corrodes and will develop rust over time, which can pollute your water, making it unsafe for drinking. The effect of corrosion is usually minimised by using galvanised steel, but it will still rust and corrode over time. Also, the zinc material used in galvanised steel can leak into the water and leave it with a metallic taste. You can go for stainless steel to avoid these issues, but stainless steel tanks are usually highly priced.
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