There aren’t many consolations to a rainy day– cosy lounge time, soothing sounds of water on the roof, and perhaps a rainbow or a puddle-splash afterwards. But you can add one more by placing a water tank to capture a portion of that downpour: it will decrease your environmental footprint by lowering your demand on mains water and the amount 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 ugly; 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 purchase and install a rainwater tank is how you want to use the water.
Utilizing the water outdoors– for watering the garden and washing the car, as an example– is the fastest way to start, as you possibly just need the supplier to install the rainwater tank, rather than a licensed plumber. And it will instantly cut your utilization of mains water.
Save a lot more by sending the water 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 tank do I require?
The capacity you choose will depend on the size and shape 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, although 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 suitable for you, sellers often provide calculators on their online sites, or your water authority may be able to help.
What else do I need to recognize before buying a water tank?
Rainwater tanks typically can be found in the following materials:
Metal tanks are manufactured from corrugated or flat rolled metal, which might be galvanised or coated. They often feature a plastic inner lining (Aquaplate) that will boost the quality of life of the tank and protect the water quality.
Polyethylene (plastic) tanks are well-known as they are reasonably cheap and durable. Because rust isn’t an issue, they are a very good option for people living near the coast. Other synthetic materials, like PVC and geotextile, penzu.com 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 created to withstand extreme temperature levels. They’re not the cheapest option, and more suitable for above-ground installation, while all other styles can also be installed below ground.
Concrete tanks, more often used for agricultural and industrial objectives, won’t rust, burn, melt or blow away. They may be bought ready-made, or custom made onsite.
Ask your local council and water supplier which rules and regulations apply in your area. You may need to hand in a development or building application, and there may be rules around drinking rainwater or mosquito breeding prevention, in addition to 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 remodeling or building, rather than retrofitting, you may need to incorporate energy and water-efficient components in your plans to observe new legislative requirements.
When obtaining quotes, ask if there are any additional costs for delivery and installation; extra materials (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, in which case you’ll need to consider the cost of special ground prep or excavation).
If you wish to connect the tank to your mains water system, factor in the cost of a licensed plumber, and expenses for any extra 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 discount or bill reduction– the answer may depend upon the size of the rainwater 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.