How long should a pool pump run each day?

How many hours should I run my pool pump? Work out your turnover

The number of hours is an output, not an input. It comes from two figures you can find:

1. Pool volume in litres. For a rectangle: length × width × average depth in metres × 1,000. A 10m × 4m pool averaging 1.25m deep holds 10 × 4 × 1.25 = 50m³ = 50,000 litres.
2. Flow rate in litres per minute, as delivered through your filter and pipework. This is lower than the pump's maximum rating. Your installer or the pump's performance curve can give it, and some filters show it on a gauge or flow meter.

Then turnover (minutes) = volume ÷ flow. At 150 L/min, 50,000 ÷ 150 = 333 minutes, or 5.6 hours.

Energy.gov.au, the Australian Government's energy advice site, says: “It is usually enough to pump the entire volume of water through the filter once or twice a day, but consult your pump supplier to determine adequate run times.” Pool pump sizing guides published by the industry describe a target turnover of about 6 hours for outdoor pools, extendable to about 8. That is how often the water could be turned over, not a minimum number of hours to run.

The quotable version: run a pool pump for one turnover a day — pool volume divided by real flow rate — then adjust by what the water tells you. Clear water with a steady sanitiser level means the hours are enough. Cloudy water after a hot week or heavy use means add hours for that period, rather than permanently.

What those hours cost, worked through

Take the same 50,000-litre pool and a single-speed pump drawing 1.0kW. That is an example input: your pump's input power is on its label or plate, and the Energy Rating Label shows its estimated yearly energy use.

The price is the Australian Energy Regulator's 2026–27 Default Market Offer (final determination, May 2026, in effect from 1 July 2026). The flat-rate residential usage caps, including GST, are 33.1372c/kWh in the Ausgrid area, 33.7273c Endeavour, 35.0054c Essential Energy, 27.9744c Energex (south-east Queensland) and 41.9103c SA Power Networks. These are caps on standing offers. Your own tariff may be lower, so use it if you have it.

A year of daily running is the upper bound. Many owners run fewer hours in winter, which lowers the annual figure. A more efficient pump lowers the kW figure, which is why our pool running costs per year guide finds much lower pump costs for efficient units. The method is the point: kW × hours × your c/kWh.

The levers that cut pump running costs, ranked

In the order to act on them, free levers first. Effect on the worked example: matching hours saves 30%; moving 3 of the 5.6 hours into a free window takes about 54% (3 ÷ 5.6) of the pump’s usage off the meter, before the higher rates outside the window; a 5-star variable-speed pump uses 55% less energy than a 1-star single-speed one.

1. Match hours to turnover. Cutting from 8 hours out of habit to the 5.6 hours one turnover needs saves 30% with no spending: $2.65 down to $1.86 a day in the example. This is the first thing to change.
2. Move the hours to the cheapest time. The AER's Solar Sharer Offer, a new standing offer from 1 July 2026, has a 3-hour free usage period: 11am–2pm in NSW and SE Queensland, 12–3pm in South Australia. Usage above 24kWh in that window is charged. You need a smart meter and have to opt in. Retailers with more than 1,000 customers must offer it, but it cannot be the default. In the example, 3 of the 5.6 hours would be free. The AER notes that usage outside the window costs 1–4c/kWh more than the standard time-of-use offer, so compare your whole bill before switching.
3. A more efficient pump when the old one dies. Energy.gov.au says a 5-star variable-speed pump uses 55% less energy than a 1-star single-speed pump. A variable-speed pump can run at a slow filtering speed for longer to reach the same turnover.
4. Keep it clean. Clean skimmer and pump baskets, a clean filter and clear intake grates reduce the work the pump has to do, according to energy.gov.au.
5. Do not oversize. Energy Rating advises the smallest pump suitable for the pool. An oversized pump puts more pressure on the filter and shortens its life.

The quotable version: hours first, timing second, hardware third — the two cheapest levers cost nothing. For the full list, including covers and heating, see the best way to reduce pool running costs.

Reading the pool pump energy label

Pool pumps sold in Australia must meet Minimum Energy Performance Standards and carry an Energy Rating Label. Suppliers have had to display it since 1 October 2022.

Energy Rating says the label gives you two things: a star rating (more stars, less energy, cheaper to run) and an estimated yearly energy use in kWh, which you can multiply by your c/kWh to predict running costs.

The catch Energy Rating spells out: stars compare pumps of the same size, not across sizes. Its own example is that a 1,500-watt pump with five stars uses more energy than a 600-watt pump with five stars. So:

• First size the pump to the flow your filter and turnover need. Ask a professional, which Energy Rating also recommends.
• Then choose the most stars at that size. Energy.gov.au recommends a minimum of 5 stars.
• Use the Energy Rating Calculator on energyrating.gov.au to compare registered models' running costs at your own tariff.

If you are building a new pool, pump size and type are set in the quote, and they are worth comparing between builders as closely as the shell. What differs between pool quotes covers the equipment lines. You can get quotes and ask each builder for the specified pump's star rating and flow at your filter.

Common questions

Sources

• energy.gov.au — Pool pumps
• Energy Rating — Pool pumps (consumer information)
• Energy Rating — Labelling for pool pumps using the Energy Rating Label and Icon
• AER — Default market offer prices 2026–27, final determination (May 2026)
• Published pool pump sizing guide (turnover times), pooladvisor.com.au

General information only, current at 2026-09-24. Pool rules differ by state and by council, and penalty amounts are updated regularly. Confirm your own obligations with your council or a registered inspector before acting.