
| Tank(s) capacity | Rebate* |
| 2,000 - 3,999 litres | $150 |
| 4,000 - 6,999 litres | $400 |
| 7,000 litres and above | $500 |
| Internal connections | Rebate* |
| Rainwater tank connected by plumber to toilet | Additional $500 |
|
Rainwater tank connected by plumber to a washing machine |
Additional $500 |