Aqualine 06 6 min read Guide
What a pool costs to run, and how to cut it
The real ongoing cost of a pool, from power and chemicals to heating, and the equipment choices that bring it down without cutting corners.
Short answer: a pool's running cost is power, chemicals, water and heating, and power for the pump is usually the biggest single line. The largest lever you can pull is swapping an old single-speed pump for a variable-speed one, then putting a cover on to cut evaporation and heat loss. Those two changes do most of the saving before you touch anything else.
Where the money actually goes
A pool is not expensive to run by accident. The cost lives in four places: the power to filter and circulate the water, the chemicals to keep it clean, the water you top up as it evaporates, and the energy to heat it if you choose to. Of those, the pump is usually the one that quietly drives the bill, because on an old setup it can run for hours every day at full speed. Understand the pump and you understand most of the cost.
Pump
usually the largest running cost
Aqualine equipment notes
Variable-speed
the single biggest saving lever
Aqualine equipment notes
A cover
cuts evaporation and heat loss
Aqualine equipment notes
General guidance for a Sunshine Coast pool. Your actual cost depends on pool size, equipment and how much you heat.
The biggest lever: a variable-speed pump
If you change one thing, change the pump. An old single-speed pump runs flat out whenever it is on, which is the most expensive way to move water. A variable-speed pump runs slowly for most of the day, doing the same filtration job for a fraction of the energy, and only speeds up when it needs to. For most pools it is the change that pays for itself fastest, and it is the first upgrade we recommend on a tired setup.
Start here
On an older pool, a variable-speed pump plus a cover usually delivers the bulk of the
saving. Get those two right before you spend on anything else, then look at heating and
automation once the basics are running efficiently.
Covers, heating and automation
A cover is the cheap win most people skip. It cuts evaporation, so you top up far less water, and it holds heat in overnight, so any heating you run goes further. On the Sunshine Coast it can stretch the comfortable swimming season at almost no running cost. For heating itself, solar is cheap to run once installed and works well in this climate, while a heat pump heats on demand year round but draws more power. Automation ties it together, running the pump and any heating on a smart schedule so nothing runs longer than it needs to. None of this is essential, but each piece chips away at the bill.
Cut your running costs in order
- If you still run a single-speed pump, upgrade to a variable-speed one first.
- Put a cover on to cut evaporation and overnight heat loss.
- Match your heating to how much of the year you actually swim: solar for season extension, a heat pump for year round.
- Add automation to schedule the pump and heating so nothing runs longer than needed.
- Keep the water balanced, so chemicals are not wasted correcting neglect.
What to do next
If your pool is costing more than it should, the fix is almost always the equipment, not the way you swim. Start with the pump and the cover, then decide on heating and automation from there. Aqualine can assess your current setup and price an upgrade as a single fixed number, with no provisional sums, so you know exactly what the saving costs to install. When you are ready, see our equipment upgrades and we will tell you which change pays back first.
Common questions
What does a pool actually cost to run each year?
The running cost is power for the pump, chemicals, water to top up evaporation, and heating if you heat it. Power for filtration is usually the largest of those, which is why the pump you run matters more than almost anything else. The single biggest lever is moving from an old single-speed pump to a variable-speed one.
What is the cheapest way to cut my pool running costs?
A variable-speed pump and a cover. The pump is the biggest power user, and a variable-speed model runs slower for most of the day and uses a fraction of the energy of a single-speed unit. A cover cuts evaporation and heat loss, so you top up less water and spend less on heating. Together they do most of the work.
Is it worth heating a pool on the Sunshine Coast?
It depends how much of the year you want to swim. Solar heating is cheap to run once installed and extends the season well in this climate. A heat pump heats on demand year round but uses more power. A cover makes either option far cheaper by holding the heat in overnight, so we usually start there.