Work it out from turnover, not a fixed number
The actual target is turnover, not a number of hours: run the pump long enough to filter one full pool volume through the system, and the water stays clear. SPASA, the pool industry's own association, states directly on its own site that summer filtration should run 8 to 10 hours a day, and Zodiac Australia, one of the country's largest pump manufacturers, gives the fuller picture: 8 to 10 hours in summer, 4 to 6 in winter, and a full turnover inside 4 to 6 hours either way. That's a wider range than our own calculator's FAQ gives (6 to 8 hours in summer, 3 to 4 in winter), both figures are commonly quoted, and the honest answer is to lean toward the fuller SPASA/Zodiac range unless you've actually timed your own pool's turnover, since running short is the mistake that costs you in algae and chemicals, not electricity.
Zodiac's own rule of thumb for adjusting to the weather is simple: add roughly an hour of filtration for every 10°C the day's temperature sits above 15°C, since warmer water grows algae faster and needs more turnovers to keep up. That's also the real reason the same hours-a-day advice doesn't fit every state evenly, a hot, humid Queensland or Northern Territory summer sits toward the top of the range, a milder Victorian or South Australian one nearer the bottom, and the gap is climate, not guesswork.
What this costs, state by state
One extra hour a day, for a full year, on a typical single-speed pump against a variable-speed pump running its eco setting, the same two classes our pool pump running cost calculator's own dropdown uses, at each state's current reference electricity rate.
| State | Rate | Typical single speed (1.1 kW) | Variable speed, eco (0.35 kW) | Yearly gap, per hour |
|---|---|---|---|---|
| New South Wales | 32.4¢ | $130 | $41.39 | $88.70 |
| Victoria | 29.8¢ | $120 | $38.07 | $81.58 |
| Queensland | 31.2¢ | $125 | $39.86 | $85.41 |
| South Australia | 38.1¢ | $153 | $48.67 | $104 |
| Western Australia | 33.6¢ | $135 | $42.92 | $91.98 |
| Tasmania | 28.9¢ | $116 | $36.92 | $79.11 |
| Australian Capital Territory | 27.4¢ | $110 | $35.00 | $75.01 |
| Northern Territory | 31.7¢ | $127 | $40.50 | $86.78 |
Reference rates for 2026–27. Your row is highlighted once you set your location.
What an extra hour actually costs
Hours multiply the cost directly, so trimming one changes the bill by exactly that much, but the pump type you're running it on changes how much that hour is worth. On a typical single-speed pump (1.1 kW, the same class our pool pump calculator's own dropdown uses), one extra hour a day works out to $110 (ACT) to $153 (SA) a year at current rates. The identical hour on a variable-speed pump's eco setting (0.35 kW) costs about a third of that, $35 to $49 a year, because the eco setting simply draws less power to move the same water, the table above has every state's version of both.
That's the practical takeaway for anyone weighing up trimming an hour against upgrading the pump: on a single-speed pump, cutting an hour a day saves real money. A variable-speed pump on eco makes the hours question far less consequential in the first place, since even a full extra hour on eco costs a third of what the same hour costs on single speed.
Common questions
How many hours should I run my pool pump?
Enough for one full turnover. SPASA and Zodiac Australia both put that at 8 to 10 hours a day in summer and 4 to 6 in winter, a fuller range than our own calculator's FAQ gives (6 to 8 summer, 3 to 4 winter), lean toward the fuller range unless you've actually timed your pool's own turnover.
Does hot weather mean I need to run my pool pump longer?
Yes. Zodiac Australia's own rule of thumb is roughly an extra hour of filtration for every 10°C the day's temperature sits above 15°C, since warmer water grows algae faster. It's also why hot, humid states like Queensland and the Northern Territory commonly run pumps nearer the top of the seasonal range, and cooler states like Victoria and South Australia nearer the bottom.
How much does an extra hour of pool pump running cost?
On a typical single-speed pump (1.1 kW) it's $110 to $153 a year depending on your state's electricity rate. The identical hour on a variable-speed pump's eco setting (0.35 kW) costs about a third of that, $35 to $49 a year.
Is it worth buying a variable speed pump instead of just cutting hours on a single speed one?
For most households, yes, it beats trimming hours alone. See our companion guide on whether a variable speed pool pump is worth it for the purchase-price gap and how fast it pays for itself.
Sources
Summer filtration hours, quoted directly: SPASA, Saving Water (the Swimming Pool and Spa Association of Australia). Seasonal hours, turnover time and the temperature-based adjustment rule: Zodiac Australia, How Long Should I Run My Pump For? Regional climate framing: Busselton Pumpshop, How Long Should You Run a Pool Pump in Australia. Pump power draw: same energyrating.gov.au registration database (July 2026 snapshot) as our pool pump running cost calculator. Electricity rates: AER Default Market Offer and each state's regulated reference tariff, current for 2026–27. All fetched July 2026.