How to Decide What Styel of Water Tank Is Most Optimal For Melbourne

There aren’t many consolations to a rainy day– cosy couch time, soothing sounds of water on the roof, and perhaps a rainbow or a puddle-splash afterwards. But you can add yet another by attaching a water tank to capture some of that downpour: it will diminish your environmental footprint by minimizing 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 are no more just huge, round and ugly; they can be found in all sizes and shapes that can make efficient use of minimal or tricky urban spaces.

Water for outdoor or indoor use?

Probably the most important issue to consider before you acquire and install a water tank is how you would like to use the water.

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

Save much more by sending the rain water 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 really need?

The storage capacity you choose will rely on the shapes and size of your household and garden. Round, squat tanks fit effectively 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, but 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 suitable for you, sellers often provide calculators on their web sites, or your water authority may be able to help.

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


Rainwater tanks typically 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 incorporate a plastic inner lining (Aquaplate) that will increase the life of the tank and give protection to the water quality.

Polyethylene (plastic) tanks are well-liked as they are relatively cheap and durable. Because rust isn’t a conern, they are a good option for people living near the sea. Other synthetic materials, such as PVC and geotextile, are utilized 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 temperatures. They’re not the cheapest alternative, and preferable for above-ground installation, while all other kinds can also be installed below ground.

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


Ask your community council and water supplier which rules and regulations are applicable in your local area. You may need to submit 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 placement, colour, height and labelling or noise regulations for a pump.

Are you renovating, building new or retrofitting?

If you are remodeling or building, rather than retrofitting, you may have to incorporate energy and water-efficient components in your plans to obey new legislative requirements.

Extra costs

When getting quotes, inquire if there are any supplementary costs for delivery and installation; extra products (such as pipes, fittings and taps); optional 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 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 wish to connect the tank to your mains water supply, look into the cost of a licensed plumber, and costs for any additional work that needs to get done to your roof and/or guttering.

Can you obtain 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 hinge on the size of the rainwater tank and whether it’s connected to a toilet and/or washing machine.


Rainwater tanks can vary from around $700 to $2000, starting from 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: verla76c549

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