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Rainwater Tanks are not only a great way to save water in your home, but they are also a great way to help keep your garden green when the summer heat tries its best to dry it out. You can use your tank water in a variety of ways, on the garden, for the toilet and even washing the car!
Rainwater is harvested from roofs, channelled down gutters and through downpipes. These surfaces can also catch dirt, dust and insects that can be captured in your water tank through the water collection process. Leaf strainers, gutter guards and water diverters all provide protection against dirt and dust entering your tank.
Over a period of time, your water tank will build up sludge and muck that sits on the bottom and the walls of your water tank (especially if it has corrugated walls). There are many things which contribute to this such as:
It is recommended that you clean out your tank regularly every 2-3 years to avoid such issues occuring.
Straight (smooth sided) water tanks are the easiest to clean. How do you clean your tank?
The no-compromise solution to base construction is a reinforced 100mm concrete slab. A slab can be square or round. The base should always be 100mm larger than the diameter of the tank. Prior to pouring the slab, ensure the ground has been 100% compacted. Your base will be compromised if soil has not been compacted and will affect your tank guarantee.
A crusher dust/sand base is considerably cheaper than a concrete slab, but may need to be augmented over time. Heavy rain falls can erode a crusher dust base and may cost you extra if it needs to be repaired. It’s best to use treated pine sleepers, screwed together at the ends to create a retainer for the crusher dust/sand but many other materials are appropriate. Ensure base is compact and sturdy prior to laying down the crusher dust/sand. Base should be anywhere from 25mm to 50mm high when compacted. Crusher dust or sand is available from any landscape material suppliers.
Pre-Cast Concrete Slabs
There are a few factors to consider when buying your first tank. You many want to consider the following:
The size of your tank shouldn’t be determined by either of those things as we’ll never know how long it could be between rain events. So we always recommend looking for the biggest tank you can reasonably fit into your yard & one you can reasonably afford.