Rainwater harvesting captures roof runoff for garden use, reducing your reliance on mains water and your water bills. In Melbourne, where average annual rainfall is 648mm, even a modest rainwater system can supply a significant portion of your garden’s water needs.
System Types
- Slimline tanks (1,000–3,000L) — Fit against walls or fences. $500–$1,500 installed.
- Round tanks (2,000–10,000L) — Best capacity-to-cost ratio. $800–$3,000 installed.
- Underground tanks (5,000–20,000L) — Hidden from view. $3,000–$10,000+ installed.
Government Rebates
Check current Victorian government rebates for rainwater tank installation. Rebates have historically been available for tanks connected to toilet and/or laundry as well as garden use.
See irrigation services for system installation.
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