We've done some sums to help you work out how much it will cost to fill or top up your pool or spa.

Tips for using this page:

  • Please use these figures as a guide only.
  • These amounts are an estimate of the extra charges you can expect to appear on top of your typical bill.
  • Filling a swimming pool will not have a large impact on your sewerage usage charges as these are capped at 740 litres per day
  • The average garden hose uses 25 litres per minute.
    Running your hose for 1 hour = approx. 1500 litres.

Fill guide

POOL
approx. volume
Estimated cost
based on 2025-26 prices
20,000 litres $100
30,000 litres $150
40,000 litres $200
50,000 litres $251
60,000 litres $302
70,000 litres $353
80,000 litres $404
SPA
approx. volume
Estimated cost
based on 2025-26 prices
750 litres $3.76
1000 litres $5.01
1500 litres $7.52
2000 litres $10.02

Top-up guide

Hose running time Estimated cost
based on 2025-26 prices
30 minutes $3.76
1 hour $7.52
2 hours $15.04
3 hours $22.56
4 hours $30.07