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 one more by installing a water tank to capture some of that downpour: it’ll decrease your environmental footprint by lowering your demand on mains water and the volume of stormwater runoff into rivers and oceans, and can also cut your water bill in the long run.
Rainwater tanks are no longer just huge, round and bad-looking; they come in all shapes and sizes that can make efficient use of minimal or tricky urban spaces.
Water for outdoor or indoor usage?
The absolute most important issue to consider before you purchase and install a rainwater tank is how you wish to use the water.
Employing the water outdoors– for watering the garden and washing the car, for instance– is the fastest way to start, as you probably just need the supplier to set up the rainwater tank, rather than a licensed plumber. And it will immediately cut your usage of mains water.
Save a lot more by sending the rain water to your toilet, washing machine or water system, but you’ll require a licensed plumber to connect the rainwater tank to your mains supply.
What size rainwater tank do I need to have?
The capacity you choose will depend on the shapes and size of your household and garden. Round, squat tanks fit adequately 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 have to be considered. To help determine the size and shape that’s best for you, sellers often provide calculators on their internet sites, or your water authority may have the capacity to help.
What else do I need to recognize before acquiring a rain water tank?
Water tanks commonly can be found in the following materials:
Metal bushman tanks are crafted from corrugated or flat rolled metal, which can 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 a problem, they are a very good option for people living near the ocean. Other synthetic materials, such as PVC and geotextile, are used 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 designed to withstand extreme temperature levels. They’re not the cheapest choice, and more suitable for above-ground installation, while all other kinds can also be set up below ground.
Concrete tanks, often used for agricultural and industrial applications, won’t rust, burn, melt or blow away. They could be bought ready-made, or customized onsite.
Ask your regional council and water supplier which rules and regulations apply in your location. You may need to hand in a development or building application, and there may be guidelines 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, as opposed to retrofitting, you may need to incorporate energy and water-efficient attributes in your plans to abide by new legislative requirements.
When getting quotes, ask if there are any further costs for delivery and installation; extra products (such as pipes, fittings and taps); alternative extras (such as a first-flush or backflow-prevention device); a pump (unless you can make use of 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 consider the cost of special ground prep or excavation).
If you would like to connect the tank to your mains water supply, factor in the cost of a licensed plumber, and charges for any supplementary work that needs to be 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 fluctuate from around $700 to $2000, beginning with a small, freestanding model without pump or extras, to large, custom-built models. Costs vary basing on the size, material, finish and strength of the tank.