Why is there a higher rebate for tanks which are connected to toilets and/or washing machines?
Rainwater tanks which are plumbed into the house will save much more mains water. In addition, using water for every day uses means there is always capacity in the tank to collect water when it rains, and reduces the likelihood of overflow during periods of heavy rain. However, connecting a tank to a toilet or washing machine is more expensive, so the rebate is higher to encourage homeowners to take the next step and connect.
