Yes, You Need To Winterise Your Pool (Here’s Why)

As the bright summer sun gradually fades and gives way to the crisp, refreshing autumn air, our thoughts inevitably shift. Gone are the days of lazy afternoons spent lounging poolside, soaking up the warmth and the gentle sound of water. Instead, we find ourselves longing for the cosy comfort of evenings spent indoors, perhaps curled up with a good book or enjoying the warmth of a crackling fire.

However, amidst this seasonal transition, there’s an important task that demands our attention – one that cannot be overlooked or postponed. Before you make the switch from your light and breezy swimsuit to your soft, warm sweater, it’s essential to undertake the crucial process of pool winterisation. Preparing your pool for the colder months ahead is vital to ensure it remains in perfect condition, ready to welcome the joys of summer once again when the seasons turn.

The Basics of Pool Winterisation

Winterising your pool is similar to tucking your garden in for the winter; it’s about preparing it to withstand the upcoming colder months. Just like you would protect your plants and soil from the frost, winterising your pool ensures that it remains in top condition, ready to greet you warmly when the spring sunshine reappears.

This preparation is crucial to ensure that, come spring, your pool is as welcoming and inviting as ever, ready for you to dive back into its refreshingly clear waters without missing a beat.

Let’s dive into a detailed step-by-step guide to the crucial steps needed for effective pool winterisation. This guide will cover everything from balancing the water chemistry to protecting the physical structure of your pool, ensuring that every aspect of your pool is meticulously cared for during the cold season.

  1. Balance the Water Chemistry: The first step involves adjusting the pH, alkalinity, and calcium hardness levels of your pool water. Achieving this delicate balance is vital for protecting the pool’s surfaces and equipment from corrosion or scale buildup. It’s a preemptive action that safeguards the integrity of your pool through the winter.
  2. Deep Clean: Before covering your pool, give it a thorough cleaning. This means skimming off any debris on the water’s surface, vacuuming the bottom to remove dirt and leaves, and brushing the walls to dislodge algae and prevent buildup. A clean pool at the start of winter means you’ll have much less work to do when it’s time to open it again.
  3. Lower Water Level: Depending on the type of pool cover you have, it might be necessary to lower the water level slightly below the skimmer. This step is crucial for preventing damage to the pool structure and the skimmer itself from freezing water, which can expand and cause cracks.
  4. Protect Your Pipes and Equipment: To avoid the costly mistake of cracked pipes and damaged equipment, it’s essential to drain water from your pool’s equipment, including the pump, filter system, and heater. Applying pool antifreeze to the pipes can further protect them by preventing any residual water from freezing.
  5. Cover Your Pool: Finally, securing a tight-fitting pool cover over your pool is the last line of defence against the elements. A good cover keeps out debris, reduces the risk of algae growth by blocking sunlight, and helps maintain the water balance. It’s essential for keeping your pool as maintenance-free as possible over the winter.

By following these detailed steps, you’re not just winterising your pool; you’re ensuring a smoother transition into the next season, making your spring pool opening as hassle-free as possible.

The Benefits of Winterising Your Pool


Winter poses significant challenges for your pool. The dropping temperatures can lead to the formation of ice, which has the potential to crack tiles or even damage the delicate lining of the pool. This can lead to costly repairs and maintenance issues. To combat these risks, implementing winterisation techniques is crucial.

These methods include adjusting the water chemistry, lowering the water level, and using pool covers to protect against the cold. By taking these steps, you can ensure the longevity of your pool’s structure and equipment, saving you from unnecessary expenses and extending the life of your pool.

Financial Savings

Repairs to your pool can become a major expense if you don’t choose the right pool installers in newcastle, but by taking the time to properly winterise your pool, you can avoid the hefty repair bills that often surprise pool owners at the start of spring.

Additionally, keeping your water chemistry balanced throughout the winter months is crucial. It means you’ll spend less money and effort trying to correct any imbalances when it’s time to reopen your pool. This proactive approach not only preserves the condition of your pool but also ensures a smoother and more cost-effective transition into the swimming season.

Common Mistakes to Avoid

When winterising your pool, here are some pitfalls to steer clear of:

  • Not Balancing the Water Chemistry Correctly: This can lead to damage to the pool’s interior and filtration system.
  • Forgetting to Fully Clean the Pool: Leaves and debris can decompose over winter, causing stains and making it harder to clean in the spring.
  • Improperly Installed Pool Covers: A poorly fitted cover can collapse under the weight of snow or allow debris inside.

When to Start Winterising

Timing is everything. Begin your winterisation process when the daytime temperatures consistently fall below 18°C. This ensures the water is cool enough to slow algae growth but not so cold that you risk freezing damage.


Ignoring the need to winterise your pool can lead to a springtime of regret, filled with unnecessary cleaning and repair costs. By taking the time to properly prepare your pool for winter, you’re investing in the enjoyment of countless future sunny days spent splashing about.

Winterisation may seem daunting, but with the right steps and precautions, you can ensure your pool remains a jewel in your garden, ready for when the warm weather returns. Remember, a little effort now means a lot less hassle later. So, don’t delay; make sure your pool is winter-ready and looking forward to a refreshing restart come spring.

Home Base Project Team
Home Base Project Team
At The Home Base Project, we offer practical, real-life tips and inspiration about DIY, decorating and gardening. The Home Base Project provide the best information about home renovation and design, connecting home design enthusiasts and home professionals across the world.