We’ve been lucky enough to enjoy some surprisingly pleasant weather this October, so closing your outdoor pool for winter may not be at the top of your list just yet. But, as we know all too well in the UK, autumn weather can change quickly.
That makes now a good time to think about the weeks ahead. Do you want to keep enjoying your outdoor pool for a little longer? Is it time to prepare it for winter? And, if you have an indoor pool, what should you be checking as temperatures outside begin to fall?
A little preparation now can help protect your pool and its equipment, keep everything running efficiently and reduce the likelihood of unwelcome surprises over the winter months.
Enjoying your outdoor pool for a little longer
October doesn’t automatically mean the end of the outdoor swimming season. With the right equipment and a little careful management, you may be able to continue enjoying your pool while the milder weather lasts.
A good-quality pool cover becomes particularly important at this time of year. It can help retain heat, reduce evaporation and keep falling leaves and debris out of the water. If your pool is heated, reviewing how and when you heat it can also help you balance comfort with running costs as overnight temperatures begin to drop.
It’s equally important not to relax your usual maintenance routine simply because the pool is being used less frequently. Water chemistry, filtration and cleaning still need attention, while autumn leaves and debris can quickly place additional demands on filtration systems.
Keeping a pool open for longer should be about enjoying it, rather than fighting against the seasons. As temperatures fall consistently, there will come a point when preparing the pool for winter makes more sense.
How do you know when it’s time to close your pool?
There isn’t necessarily one date when every outdoor pool should be closed. The right time will depend on the pool, how frequently it is being used, its heating system and, of course, the weather.
If you’re no longer using the pool regularly and maintaining the desired water temperature is becoming increasingly inefficient, it may be time to consider winterising it.
Planning this before the first spell of genuinely cold weather is important. Waiting until temperatures have already dropped significantly can leave less time to identify maintenance issues or carry out repairs before winter.
Preparing your outdoor pool for winter
Closing a pool correctly involves more than simply switching everything off and putting the cover on.
Before winter, the pool should be thoroughly cleaned and the water appropriately treated and balanced. The filtration and circulation systems need to be considered, alongside pumps, heating equipment, pipework and other plant.
Exactly what is required will depend on the design and equipment within your individual pool. Some systems may need draining or isolating, while others require a different approach to protect them from cold temperatures and periods of reduced use.
The pool cover itself should also be inspected. A damaged or poorly fitted cover can allow debris into the water and may not provide the protection you expect throughout the winter.
Getting these details right can make a significant difference when you return to the pool next spring.
Why professional winterisation is worth considering
Correct winterisation isn't only about keeping the water looking good. It helps protect the wider pool system during months when it may receive far less attention.
A professional winterisation service provides an opportunity to inspect the pool and its equipment, identify potential problems and make sure the system is appropriately prepared for colder conditions.
It can also highlight equipment that is beginning to show its age or areas where performance could be improved. Addressing these issues during the quieter months can be far preferable to discovering them when you want to start using the pool again.
Indoor pools: what changes when the temperature drops?
For indoor pools, autumn obviously doesn't mean closing for winter. However, the changing season still brings different demands.
As outdoor temperatures fall and the difference between indoor and outdoor conditions increases, heating, ventilation and humidity control become increasingly important.
An indoor pool creates a naturally humid environment, so effective ventilation and dehumidification are essential for maintaining comfortable conditions and protecting the surrounding building. Autumn is a good opportunity to check that these systems are performing as they should before the colder winter months.
Pool heating, filtration, water treatment and plant equipment should also continue to be serviced and monitored. If equipment is inefficient or struggling to maintain the required conditions, winter can quickly make those shortcomings more noticeable – both in performance and running costs.
Thinking beyond this winter
Autumn and winter can also provide a useful opportunity to look at the bigger picture.
If your pool has become increasingly expensive to run, equipment is approaching the end of its useful life or there are aspects of the pool you would like to improve, the quieter months provide time to consider refurbishment or upgrades ahead of next summer.
That might include more efficient heating or plant equipment, improved controls, a new pool cover, updated finishes or a wider refurbishment of an existing pool.
For those planning a new pool, thinking about year-round performance from the outset is equally important. Heating, insulation, ventilation, plant specification, covers and ongoing maintenance all influence how efficiently and reliably a pool will perform long after construction is complete.
Prepare now, enjoy later
Whether you’re squeezing a few more swims out of your outdoor pool, preparing it for winter or keeping an indoor pool performing efficiently throughout the colder months, October is a good time to give your pool some attention.
At Penguin Leisure, we provide professional servicing and maintenance to help keep pools operating at their best throughout the year, including seasonal preparation and winterisation. And, where more substantial improvements are required, Penguin Leisure and Penguin Construction can support refurbishment, upgrades and new pool projects.
If you’d like help preparing your pool for winter, arranging a service or discussing improvements for the year ahead, get in touch with the Penguin team.