What Size Rainwater Tank Do I Need?

For large properties with significant landscaping and a large home we recommend a minimum of 10,000 gallons. For smaller properties and homes that don't have to worry about fire considerations, 2500-3000 gallons is a common tank tank that will give you plenty of water for daily needs.

What size water tank do I need for a family of 4?

For an average 4-person household, this works out to an average of 452 litres per day. Please note that this only includes a small amount of water for a very small courtyard style garden.

What size rainwater tank do I need for garden?

He reckons the best sized tanks are a minimum 3000 litre for a small block and a minimum 5000 litre for a large block. "Before installing a tank, people should check with their local government. In some areas tanks should be installed at least a minimum of 450 millimetres from the property boundary line.