How to Understand What Kind Of Watertank Is Most Suited For Melbourne

There aren’t many consolations to a rainy day– cosy couch time, soothing sounds of drops on the roof, and maybe 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 decrease your environmental footprint by decreasing your demand on mains water and the quantity of stormwater runoff into rivers and oceans, and can also trim your water bill in the long term.

Rainwater tanks are no more just huge, round and unsightly; they are available in all shapes and sizes that can make efficient use of modest or tricky urban spaces.

Water for outdoor or indoor use?

Easily the most important issue to consider before you buy and install a rainwater 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 easiest way to start, as you probably just need the supplier to set up the water tank, instead of a licensed plumber. And it will immediately cut your utilization of mains water.

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

What size rainwater tank do I really need?

The volume 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, however, is more expensive.

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

What else do I need to understand before purchasing a rainwater tank?


Water tanks typically are available in the following materials:

Metal tanks are crafted from corrugated or flat rolled metal, which may be galvanised or coated. They often feature a plastic inner lining (Aquaplate) that will increase the life of the tank and protect the water quality.

Polyethylene (plastic) tanks are prominent as they are fairly cheap and durable. Because rust isn’t an issue, they are a great option for people living near the sea. 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 temps. They’re not the cheapest possibility, and more suitable for above-ground installation, while all other kinds can also be installed below ground.

Concrete tanks, more frequently used for agricultural and industrial reasons, won’t rust, burn, melt or blow away. They might be bought ready-made, or custom made onsite.


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

Are you renovating, building new or retrofitting?

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

Extra expenses

When obtaining 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 employ gravity for water pressure); and a stand (unless you would like to put it on the ground or below it, by which case you’ll need to think about the cost of special ground prep or excavation).

If you intend to connect the tank to your mains water system, factor in 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 receive a water tank rebate?

Contact your local water or government authority to see if you’re entitled to a cash grant or bill reduction– the answer may rely on the size of the tank and whether it’s connected to a toilet and/or washing machine.


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

Author: johnathan8917

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