Rainwater tanks

Rainwater tanks capture rainwater run-off from your roof to provide a valuable water resource to use for washing clothes, flushing toilets, watering gardens and topping up pools. Tanks also help our natural areas by reducing stormwater run-off from properties which can move a lot of sediment, clogging up local creeks and waters. 

A rainwater tank can halve your water bill by saving you 35,000 – 60,000 litres per year.

Rainwater tanks come in a range of materials, shapes and sizes with something to suit every home. A rainwater tank can add value to your home and can be a vital source of water in the event of a bush fire.

Rebates available for rainwater tanks

Ku-ring-gai residents and businesses can claim up to $500 towards the cost of installing a rainwater tank and $200 per internal connection from the tank (maximum two). Conditions apply.

Learn more about our Water Smart rebates. 

Read more about the principles of water sensitive urban design and what Council is doing.

Learn more about rainwater tanks

SEPP- Exempt and Complying Development Codes: Legislative requirements of Rainwater tank installation above ground, below ground

Ku-ring-gai Council DCP: Part 24 –Water Management

Ku-ring-gai Council: Rainwater tank workshop presentation 

Australian Government Your Home: Rainwater - rainwater harvesting system checklists, choosing tank types and pump sets and maintenance.

Hunter & Central Coast Regional Environmental Management Strategy: Short video on how to maintain your rainwater tank system

Ku-ring-gai Council: Household Water Systems

NSW Government BASIX: Rainwater harvesting system guidelines

Alternative Technology Association (ATA): Tankulator – online tool to calculate the ideal rainwater tank size for you

Savewater: List of water and energy efficient products vetted by the ATA.