There aren’t many consolations to a rainy day– cosy lounge time, soothing sounds of drops on the roof, and maybe a rainbow or a puddle-splash afterwards. But you can add one More Support by installing a water tank to capture a bit 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 more just huge, round and uninviting; they can be found in all shapes and sizes that can make efficient use of modest or tricky urban spaces.
Water for outdoor or indoor use?
Probably the most important issue to consider before you get 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 best way to start, as you probably just need the supplier to set up the rainwater tank, rather than a licensed plumber. And it will promptly cut your usage of mains water.
Save even more by sending the rainwaer to your toilet, washing machine or hot 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 need to have?
The storage capacity you choose will rely on the size and shape of your household and garden. Round, squat tanks fit efficiently 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 location will also need to be considered. To help determine the size and shape that’s right for you, sellers often provide calculators on their web sites, or your water authority may have the opportunity to help.
What else do I need to understand before acquiring a water tank?
Rainwater tanks generally come in the following materials:
Metal tanks are created from corrugated or flat rolled metal, which might be galvanised or coated. They often incorporate a plastic inner lining (Aquaplate) that will boost the life of the tank and safeguard the water quality.
Polyethylene (plastic) tanks are well-liked as they are comparatively cheap and durable. Because rust isn’t a problem, they are a very good option for people living near the coast. Other synthetic materials, like PVC and geotextile, are utilized for bladder storage. Bladders work for water storage below a deck or floor; while their material is tough, it’s not intended for outdoor installation.
Fibreglass tanks are rust and chemical-resistant and manufactured to withstand extreme heat levels. They’re not the cheapest possibility, and preferable for above-ground installation, while all other types can also be installed below ground.
Concrete tanks, often used for agricultural and industrial purposes, won’t rust, burn, melt or blow away. They can possibly be bought ready-made, or customized onsite.
Ask your community 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 rules 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 remodeling, building new or retrofitting?
If you are renovating or building, in lieu of retrofitting, you may need to incorporate energy and water-efficient features in your plans to satisfy new legislative requirements.
When securing 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 make use of gravity for water pressure); and a stand (unless you would like to put it on the ground or below it, through which case you’ll need to factor in the cost of special ground prep or excavation).
If you intend to connect the tank to your mains water supply, factor in the cost of a licensed plumber, and expenses for any supplementary work that needs to get done to your roof and/or guttering.
Can you obtain a water tank rebate?
Check with your local water or government authority to see if you’re entitled to a cash grant 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 vary from around $700 to $2000, starting from 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.