How to Understand What Type of Watertank Is Most Optimal For Melbourne, Vic

There aren’t many consolations to a rainy day– cosy sofa time, soothing sounds of drops on the roof, and perhaps a rainbow or a puddle-splash afterwards. But you can add another by installing a water tank to capture some of that downpour: it’ll shrink your environmental footprint by lowering your demand on mains water and the amount of stormwater runoff into rivers and oceans, and can also reduce your water bill in the long-term.

rainwater tanks adelaide tanks are no longer just huge, round and uninviting; they are available in all shapes and sizes that can make efficient use of small or tricky urban spaces.

Water for outdoor or indoor use?

Easily the most important issue to consider before you buy and install a water tank is how you intend to use the water.

Utilizing the water outdoors– for watering the garden and washing the car, for example– is the most convenient way to start, as you possibly just need the supplier to set up the water tank, rather than a licensed plumber. And it will immediately cut your consumption of mains water.

Save much more by sending the rainwaer to your toilet, washing machine or hot water system, but you’ll need a licensed plumber to connect the water tank to your mains supply.

What size rainwater tank do I require?

The storage capacity you choose will hinge on the shapes and size of your household and garden. Round, squat tanks fit efficiently under a deck, while slimline tanks agree with narrow spaces. An underfloor tank or bladder storage system is a good out-of-sight space saver, although is more expensive.

Your roof area and the annual rainfall in your region will also need to be considered. To help determine the size and shape that’s ideal for you, sellers often provide calculators on their websites, or your water authority may have the opportunity to help.

What else do I need to understand before getting a water tank?


Water tanks typically are available in the following materials:

Metal tanks are made from corrugated or flat rolled metal, which might be galvanised or coated. They often incorporate a plastic inner lining (Aquaplate) that will enhance the quality of life of the tank and safeguard the water quality.

Polyethylene (plastic) tanks are popular as they are reasonably cheap and durable. Because rust isn’t a problem, they are a very good option for people living near the sea. Other synthetic materials, such as PVC and geotextile, are applied for bladder storage. Bladders are useful for water storage below a deck or floor; while their material is durable, it’s not intended for outdoor installation.

Fibreglass tanks are rust and chemical-resistant and developed to withstand extreme heat levels. They’re not the cheapest possibility, and preferable for above-ground installation, while all other kinds can also be installed below ground.

Concrete tanks, often used for agricultural and industrial applications, won’t rust, burn, melt or blow away. They can be bought ready-made, or customized onsite.


Ask your local council and water supplier which rules and regulations apply in your area. You may need to forward a development or building application, and there may be policies around drinking rainwater or mosquito breeding prevention, together with restrictions on the tank’s placement, colour, height and labelling or noise regulations for a pump.

Are you renovating, building new or retrofitting?

If you are refurbishing or building, as opposed to retrofitting, you may have to incorporate energy and water-efficient functions in your plans to satisfy new legislative requirements.

Extra expenses

When obtaining quotes, ask if there are any further costs for delivery and installation; extra materials (such as pipes, fittings and taps); optional extras (such as a first-flush or backflow-prevention device); a pump (unless you can use gravity for water pressure); and a stand (unless you intend to put it on the ground or below it, in which case you’ll need to think about the cost of special ground prep or excavation).

If you would like to connect the tank to your mains water supply, look into the cost of a licensed plumber, and costs for any extra work that needs to get done to your roof and/or guttering.

Can you get a water tank rebate?

Talk to your local water or government authority to see if you’re entitled to a cash discount or bill reduction– the answer may depend upon the size of the rainwater tank and whether it’s connected to a toilet and/or washing machine.


Rainwater tanks can fluctuate from around $700 to $2000, beginning with a small, freestanding model without pump or extras, to large, custom-built models. Costs vary depending upon the size, material, finish and strength of the tank.

Author: jaspernickson38

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