Plastic Vs Concrete Underground Water Storage Tanks

A rainwater tank or water storage tank is a valuable addition to any property, saving you water and money as well as helping the environment.

underground water storage tankIf you don’t want your water tank to be visible or to take up your precious backyard space, you have the option of burying your plastic or concrete rainwater/water tank underground. Here’s what you need to know about the pros and cons of both of these types of underground rainwater and water storage tanks.

All about Plastic Underground Rainwater Tanks

Plastic underground rainwater tanks are a type of rainwater tank that are designed to be installed underground while still operating effectively.  These tanks are made from UV stabilised polyethylene (food grade) and are specifically designed and manufactured for strength, with factors such as large ribs added to the water tank walls.  Plastic underground rainwater tanks are available in sizes as small as 1000 litres right up to 10,000 litres.  They are available in different shapes such as donut and bagel as well as traditional shapes.

The modern plastic rainwater tanks that are designed to be installed underground are extremely strong, so much so that they are even able to be positioned underneath driveways – allowing a car to be driven over the top of the tank.  You can also plant a lawn or garden over the top of the tank (allowing clear space to give tank access of course), or position your entertaining area over it.  Because they are shallow in depth, they don’t require as much excavation as concrete underground tanks and they can be installed and ready to use in a matter of hours by a plumber.  If you need extra water storage, multiple units can be connected to each other.

Plastic underground water tanks are available with warranties and comply with all relevant Australian Standards relating to water tanks.  Some plastic underground tanks will require a concrete slab while others do not.

All about Concrete Underground Rainwater Tanks

A concrete underground rainwater tank can be a valuable addition to your property, especially now that the newer construction techniques have made them lighter than ever before. To give them the maximum strength possible, they are reinforced with steel.  You have two options with concrete underground rainwater tanks – to have them precast and delivered to your site where they can be installed straight away, or to have them poured on site to your specifications.

underground water tanks

Concrete underground tanks can be more expensive to install than their plastic counterparts as more excavation is required but they are exceedingly durable and are at very little risk of “floating” (as some plastic tanks can).  Concrete tanks are also at little risk of rusting, corroding, or damage from tree roots.  If damage should occur, it can be easily repaired.  As you have the choice between precast or custom poured tanks, you can choose the size of tank that suits your needs the best.

Because concrete water tanks are so strong, they are ideal for placing under driveways, courtyards, sheds, or other areas where they have to take heavy loads (to be safe, always make sure you find out the maximum load they can bear).

Source: Home Improvement Pages (by Jaclyn Fitzgerald)

The 6000 litre underground water storage tank made by JoJo Tanks reinforced and very durable and will not ‘float’ like some other inferior brands of underground tanks that are made from less durable, lighter materials.  JoJo Tanks’ 6000l underground tank can be connected up in series and can be used to store rainwater, borehole water and even municipal water for emergency water supply during water supply cuts – an increasingly common problem in South Africa.

JoJo Tanks South Africa offer a wide range of plastic water tanks and chemical tanks to suit every household, business or agricultural need, including silo tanks and silo tank stands.  See JoJo Tanks VERTICAL TANKS, HORIZONTAL TANKS, STEEL TANK STANDS and OTHER JOJO PRODUCTS. Also see JoJo Tanks’ NEW 6000 LITRE UNDERGROUND TANKS. Also see our FAQ and WATER TANK PRICES.

JoJo’s superior polyethylene plastic water tanks and steel water tank stands make JoJo Tanks the leaders in plastic water tank technology and the quality, affordability and guarantee on these water tanks make JoJo products the best choice in South Africa.  JoJo’s water tanks and chemical tanks come standard with a number of features that are often lacking on cheaper/inferior plastic tanks made by other companies in South Africa.

We are authorised JoJo Tanks dealers in South Africa and dispatch orders directly from JoJo Tank depots to save on transport costs. Full range of JoJo Tanks products and JoJo water tanks for sale.  CONTACT US for a quote on the right JoJo water tank or other JoJo product for you.  Special discounts are available on multiple orders of chemical tanks and water tanks and to our commercial and government customers.


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