Winter Pool Closure Q&A

As summer becomes a distant memory and winter strikes back, it is time to consider how you will approach closing your outdoor pool. We are sure you have plenty of questions during this time, so we are here to answer some!

Knowing the best way to protect your pool from the colder months is not always evident for many pool owners. Closing your pool down can be tough to wrap your head around, and to make that process easier, use a winter swimming pool cover calculator.

So, let's dive into some general questions asked and try our best to offer helpful answers.

Do I Need Close My Pool for Winter?

To put it simply, yes, you most certainly need to close your outdoor pool this winter.

If you do not close your pool this winter, the temperature will fall, freeze the water and cause cracks to form or expand existing ones.

So, let's not watch our outdoor pools fall apart this winter!

What is the Difference Between Pool Closure and Winterisation?

A pool can be closed at any time for various reasons. However, when it comes to closing it down for winter, these terms are often interchangeable.

Winterising or winterisation is essentially the steps you take to close and protect your pool from the winter elements. If you close your pool, you're essentially doing winterisation!

Why Do I Need to Winterise My Pool?

So, what will happen if you don't close your pool or fail to winterise it to any degree?

If there is remaining water in the pipework, this will likely freeze, which can then cause cracking in your pool's plumbing. The expansion of water into ice can also cause detrimental damage to your pump, heater and filter if left unchecked for winter.

Non-winterised pools can also experience problems with algae growth, despite the cold weather, which will be problematic to eliminate when you reopen.

If you take the necessary action to protect your pool against these issues, you will have a far simpler and easier time reopening it when the temperature starts to pick up again.

When Should I Close My Pool?

Putting the winterisation process off for too long may cause unnecessary damage; thus, knowing when to close your pool is vital.

In the UK, most people choose to close their pools by the end of September. On the whole, at this point, the weather will be poor and temperatures too cold to make staying open a realistic option.

When temperatures start to creep towards and below freezing at night, it is a sure sign that you should begin the pool closing process.

How Do I Close My Pool For Winter?

Closing your pool this winter may seem like a stressful task, but this process is easy with a set of simple instructions! Take a look at our in-depth guide:

What Swimming Pool Cover do I Need for Winter?

A winter cover is a significant line of defence when protecting your pool, so investing in an effective one will be beneficial. A good cover will snugly fit over your swimming pool and prevent anything from getting in or out.

If you need help sizing your swimming pool for a cover, check out our blog!

A standard winter cover can be a good option; it will protect your pool chemistry from being compromised and prevent any debris from entering the water.

It can help to use cover weights to secure your cover in place and prevent it from sinking. Make sure to keep your cover clean and remove any excess water that collects on top.

Another, more expensive option can be a safety cover; these can be either solid or mesh and are designed to keep your pool protected, ensuring the safety of anyone that may fall in.

What Do I Do if My Cover is Bleached?

The reason that your cover is bleached might be excessive exposure to bromine or chlorine. When you begin the process of shocking your pool, you must remove the cover for at least 24 hours to prevent bleaching and damage.

If the cover looks worse for wear, it might be time to start looking for a new one. Check out our extensive range of winter pool covers and chemicals to help make the winterising process run smoothly!

Do I Need to Drain My Pool for Winter?

There is no need to drain your pool during the winter, and if you do, there is a risk that you could cause cracks. Reduce the water below the return line and filter the pool with the correct chemicals, and your swimming pool will survive the incoming winter!

Do I Need New Chemicals for Winter?

This depends on how long you’ve had your chemicals!

Make sure to check all of your chemicals before depositing them as they all have expiry dates. However, if everything is still in date, you don’t necessarily need to purchase any specialist sanitiser for winter.

Please let us know if you have any concerns about your swimming pool or need general advice. Our helpful team is on hand to answer all of your questions.