How to Determine What Type of Water Tank Is Most Optimal For Melbourne

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

Rainwater tanks are no longer just huge, round and ugly; they can be found in all shapes and sizes that can make efficient use of small or tricky urban spaces.

Water for outdoor or indoor use?

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

Making use of the water outdoors– for watering the garden and washing the car, as an example– is the best way to start, as you possibly just need the supplier to set up the rainwater tanks adelaide tank, as opposed to a licensed plumber. And it will immediately cut your utilization of mains water.

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

What size water tank do I require?

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

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

What else do I need to know before investing in a rain water tank?


Rain water tanks usually can be found in the following materials:

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

Polyethylene (plastic) tanks are well-known as they are fairly cheap and durable. Because rust isn’t a problem, they are a great option for people living near the coast. Other synthetic materials, like PVC and geotextile, are utilized for bladder storage. Bladders are useful for water storage below a deck or floor; while their material is strong, it’s not intended for outdoor installation.

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

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


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

Are you refurbishing, building new or retrofitting?

If you are remodeling or building, in lieu of retrofitting, you may need to incorporate energy and water-efficient attributes in your plans to follow new legislative requirements.

Extra costs

When securing quotes, inquire if there are any further costs for delivery and installation; extra materials (such as pipes, fittings and taps); alternative 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 wish to put it on the ground or below it, through which case you’ll need to look into the cost of special ground prep or excavation).

If you intend to connect the tank to your mains supply of water, think about the cost of a licensed plumber, and prices for any additional work that needs to be done to your roof and/or guttering.

Can you receive a water tank rebate?

Get in touch with your local water or government authority to see if you’re entitled to a cash discount or bill reduction– the answer may hinge on the size of the water 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: benedictmcnair2

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