What size tank do I need?
A 5,000 litre tank is the most common tank used in homes, where as the 3,000 litre tank is used for townhouse and units. It also depends on the size of your house and your household needs.
What kind of pump system do I need?
There are only two types of pressure pumps the submersible and the Davey Rainbank both used for internal and external uses e.g. washing machine and filling toilets.
What does the rainbank do?
When a toilet is flushed, or a washing machine is being filled, the mains water begins to flow along the pipes.
The RainBank system, which is plumbed into the same pipes, detects the flowing water and automatically checks if there is sufficient water in the rainwater tank.
If there is enough water available in the tank, The RainBank switches on the pump, which allows rainwater from the tank to flow, in effect switching the water source from the domestic mains to the rainwater supply.
When the rainwater supply is exhausted, RainBank switches off the water pump and the valves close, allowing mains water to flow. In the case of a power failure, the RainBank supplies mains water as the back up.
What kind of accessories do I need? And what do they do?
· Leaf eater or leaf beater
Which are connected to downpipes to prevent blocking, deflect leaves and debris and keep mosquitoes out of pipes that hold water.
· First flush diverters
To help prevent the most contaminated rainwater from entering the tank.
· Tank screen
Is installed at tank entry point to keep mosquitoes and pets out.
· Insect proof screens or flap valves
Which are connected to the end of all pipes to the tank screen and to tank overflow outlets to keep mosquitoes and pets out to ensure the tank is vented properly.
· Pump system
To distribute water for use inside or outside the home.
· Rainwater filter
Fit a purpose designed rainwater filter after the pump to help reduce residual sediment, colour and odour.
· Water level monitor
Install a level indicator to help monitor your water usage. Wireless systems are most convenient and display a reading inside the home.
Why choose metal over poly?
Steel tanks do not bulge or stretch when full. They are fitted with baffles to ensure the tanks do not disfigure/bulge. The strength of steel means the tanks comfortably hold the large forces generated by tonnes of water. Steel tanks have been around for more than 100 years so the structural long life is a proven fact. In addition this strength will not deteriorate over time under the harsh Australian sun as with other materials. The Bluescope Aquaplate Steel Tanks come with a 10year warranty.
Where as poly tanks have the ability to absorb heat and raise the temperature of the water. Warm water encourages the growth of algae, supports bacteria, and tastes unpleasant. Plastic tanks have only been in production for about ten years, and as the effects of exposure to intense prolonged sunlight are known to break down the UV stabiliser, a plastic tank will inevitably fade in colour and may collapse or split.
What are the regulations?
Before you purchase or install a rainwater tank, you should check with Council whether there are any regulations about their installation and use and whether there are any approvals that first need to be obtained.
Where should my rainwater tank go?
Most rainwater tanks are above ground, But to save space you can buy slimline tanks which are installed under eaves or along fences and houses. For efficiency and to reduce installation cost, you should locate your rainwater tank close to the house near already existing downpipes and stormwater drains for overflow. Consider your neighbours when installing a tank, especially if your homes are close together.
How do I install a rainwater tank? And installation requirements?
It is best to have a licensed plumbing practitioner install your rainwater tank - remember, a licensed plumbing practitioner is required by law wherever a tank is connected to the mains water supply such as a tank for a toilet system. They are also required where you may connect your gutters to your tank and to install an overflow to storm water. A licensed plumbing practitioner will provide a certificate of compliance.
What is the rebate am I eligible?
The Australian Government is providing rebates of up to $500 for households for the purchase of a rainwater tank which is connected for internal reuse or the water for toilets and/or laundry use.
To be eligible to obtain a rebate the applicant must:
· Be the owner of the dwelling where the rainwater tank has been installed
· Be the purchaser of the rainwater tank.
· Submit the completed application form and a copy of the proof of purchase (i.e. a receipt) within six (6) months of the date of purchase of the rainwater.
The dwelling where the rainwater tank system has been installed must:
· Be an existing dwelling (not under construction)
· Not have had a rebate claimed through this program before
· Be a principal place of residence that is not owned by a government authority; and– be connected to mains water supply
The rainwater tank must
· Be installed by a licensed plumber
· Be brand new (i.e. not second hand) and purchased after 30 January 2009
· Meet relevant standards and government requirements such as local building
restrictions and regulations; and
· Be fully operational.
For guidelines and application form please use the link below: