If you’ve ever thought about trying cold water swimming and have a swimming pool at home, you don’t need to buy a plunge pool. You already have the perfect setup.
With a few simple adjustments, you can enjoy all the benefits of cold water immersion right at home, safely and affordably.
At Hydrocare, we help pool owners across the UK keep their pools open all year. Whether you want to dip in for health reasons or simply enjoy a refreshing winter swim, your existing pool can easily be adapted.
In this guide, we’ll explain the benefits of cold water swimming, how to prepare your pool for safe winter use, the cost and energy advantages, and how our team can help you make it happen.
You Don’t Need a Plunge Pool
A common misconception is that you need a purpose-built plunge pool or expensive new setup to enjoy cold water swimming. You don’t. Your current domestic pool can do the same job, naturally.
Once the heating is switched off, the water naturally cools with the air temperature, creating that perfect cold-water experience. Compared to plunge pools (which often require chillers and additional pumps), keeping your existing pool open is simpler, safer, and far more cost-effective.
And if you’ve already winterised your pool, there’s no problem. You can easily reverse winterisation by adjusting the chemistry. If the water has been overdosed with chlorine, for example, adding a chlorine reducer and rebalancing the levels will bring it back to swimming condition in just a few days.
Lower Running Costs in Winter
Running your pool during winter doesn’t have to be expensive. In fact, it can cost less than maintaining it in summer.
When water temperatures drop, the UV from sunlight no longer burns off chlorine, which means you’ll use much less sanitiser. That makes cold water swimming surprisingly affordable. Your chemicals last longer, and your filter doesn’t have to work as hard.
Most domestic pool filters are designed to circulate all the water within 6–8 hours, but during winter, you can reduce that schedule significantly. Running your pump for just a few hours a day keeps the water healthy without wasting energy. With minimal chlorine and a slower filtration cycle, your pool becomes low-maintenance and efficient.
The Smart Upgrade: Variable Speed Pumps
If you’re thinking about long-term energy savings, upgrading to a variable speed pump is one of the best investments you can make. These modern pumps let you control flow rates and energy usage, dramatically cutting running costs, especially when your pool isn’t being heated.
A variable speed pump uses less electricity at lower speeds, meaning it’s far cheaper to run than the fixed-speed pumps used in traditional systems. In most cases, it’s also far more efficient than running a plunge pool, which relies on a chiller and additional circulation equipment.
We often install these pumps for clients looking to keep their pools open year-round. It’s a smart, future-proof solution that pays for itself in savings and flexibility.
How to Prepare Your Pool for Cold Water Swimming
If you’d like to start using your pool through the colder months and enjoy some winter swimming, a few simple steps make the transition smooth:
Check your chemistry
Make sure your chlorine, pH, and alkalinity levels are balanced. Because cold water holds chlorine longer, you can use less than usual.
Clean the pool thoroughly
Remove leaves, debris, and any build-up on tiles or liners before swimming. Cold water is clearer, so you’ll notice imperfections more easily.
Run the pump and filter less often
In winter, water turnover can be slower. You can usually reduce the cycle to a few hours per day without affecting water quality.
Turn off the heater (if fitted)
Embrace the natural cold, that’s the point! You’ll save significant energy by keeping the system off.
Monitor water clarity
Even in cold conditions, make sure your pool remains clean and safe. If in doubt, our pool servicing team can test and fine-tune it for you.
Is Cold Water Swimming Safe?
Swimming in a cold water pool is perfectly safe when done sensibly. The key is gradual exposure. Here are some tips to start cold water swimming safely:
- Start with short dips, entering the water slowly, and work your way up
- Always swim with someone nearby
- Avoid alcohol before swimming
- Have a warm towel or robe ready for when you get out to balance your internal body temperature
If you have any medical conditions or are new to cold water exposure, check with your GP before starting. Once you’re accustomed, even a few minutes a day can bring remarkable benefits, including improved mood, boosted metabolism, and better sleep.
The Benefits of Cold Water Swimming
Outdoor swimming in cold temperatures has become one of the UK’s fastest-growing wellness trends, and for good reason. Taking a cold water dip can have both physical health and mental health benefits:
- Boost circulation
- Strengthen the immune system
- Release endorphins to lift your mood.
It’s a powerful way to feel invigorated, improve recovery, and reconnect with the outdoors, even on colder days.
Keeping your pool open through winter isn’t just about fitness, it’s about peace of mind. And best of all, it’s easier to maintain than most people think.
How Hydrocare Can Help Set Up Your Pool For Winter Swimming
Whether you’re curious about trying cold water swimming or ready to dive in, we can help you make the transition safely and efficiently.
Our team can provide everything from water testing and balancing to equipment checks, servicing, and upgrades like variable speed pumps or energy-efficient filters. We’ll help you find the right balance between performance, cost, and comfort, and we can even reverse a winterised setup so you can get back to swimming in days, not weeks.
For some pool owners, it’s a refreshing challenge. For others, it’s a lifestyle change. Either way, we’ll make sure your pool is ready for it.
Learn more about our year-round swimming pool renovation services
Quick Comparison: Cold Pool vs Heated Pool
| Feature | Cold Water Pool | Heated Pool |
| Energy Use | Very low (pump only) | Higher (heater + pump) |
| Chlorine Use | Minimal – lasts longer in cold water | Regular dosing required |
| Running Cost | Low | Moderate to high |
| Wellness Benefits | Boosts circulation and mood | Comfort and year-round warmth |
| Environmental Impact | Lower carbon footprint | Higher carbon footprint |
Final Thoughts
Cold water swimming is more than a trend, it’s a simple way to stay active, reduce stress, and make the most of your pool year-round. With lower chemical use, reduced running costs, and real health benefits, it’s a rewarding change that costs far less than most people expect.
If you’d like to adapt your pool for winter use or explore energy-saving upgrades, we can provide expert guidance, practical support, and tailored servicing packages.
Contact our professional, friendly team today and take the plunge into your own cold water swimming experience safely and sustainably.
Give us a call on 01444 236578 or email us at enquiries@hydrocare.co.uk.
Frequently Asked Questions
Can I really use my pool for cold water swimming without special equipment?
Yes, you don’t need to invest in a cold water plunge pool or expensive new system. Your existing pool works perfectly once the heating is switched off. With proper water balance and circulation, you can safely use it for cold water swimming all winter long.
How much does it cost to keep my pool open in winter?
Much less than most people expect. Because chlorine lasts longer in cold water and you can reduce pump run times, the ongoing costs are minimal. Many homeowners find it’s cheaper than maintaining a plunge pool or spa.
Is cold water swimming good for you?
Cold water swimming can be good for you offering potential benefits like improved circulation, better moods, strengthened immune system, and recovery support. It’s also a great way to stay active throughout winter.
