A Hot Tub Drain & Refill Service by Thames Pool Care is designed to keep your hot tub in optimal working condition. It involves draining the water from the hot tub, thoroughly cleaning the interior and refilling it with fresh, clean water. This service is important for maintaining hygiene, improving water quality and ensuring the hot tub’s longevity.
The Importance of Draining and Refilling
Over time, the water in your hot tub can become contaminated with debris, body oils, lotions and chemicals from the sanitising system. Despite regular filtering and cleaning, some of these substances can accumulate, causing the water to lose clarity and efficiency. Draining the hot tub helps remove these impurities and provides a fresh start. Additionally, the water’s pH and chemical balance can become difficult to manage after extended use, making it harder to maintain healthy water conditions.
A hot tub that isn't regularly maintained may develop issues such as cloudy water, foul odours, skin irritation or scaling. Regular drain and refill services help avoid these problems and ensure your spa remains safe and enjoyable.

The Drain & Refill Process
The service begins with draining the water from the hot tub, which can be done using a pump or by opening the drain valve, depending on the tub’s design. Once the water has been removed, Thames Pool Care will clean the tub’s interior. This may involve scrubbing the surfaces, cleaning the filters and checking for signs of damage. Any built-up debris, such as dirt or algae, is removed from the tub to prevent future contamination.
Once the cleaning process is complete, Thames Pool Care will refill the hot tub with fresh water. After filling, they will check the water temperature, adjust the pH balance and ensure the chemical levels (such as chlorine, bromine and alkalinity) are correct. These adjustments are vital for maintaining safe, comfortable water conditions for users.
Benefits of a Hot Tub Drain & Refill Service
- Improved Water Quality: Fresh water and proper chemical balance leads to clearer, cleaner and safer water.
- Hygiene & Comfort: Removes contaminants that can cause skin irritation or foul smells.
- Prolong Hot Tub Life: Regular cleaning and maintenance prevents the buildup of harmful substances, which could cause damage to the tub’s components.
- Convenience: Professionals handle all aspects of draining, cleaning and refilling, saving you time and effort.
- Peace of Mind: Regular maintenance helps ensure your hot tub is always ready for use and in optimal condition.
Hot Tub Drain & Refill Services are an essential part of spa maintenance, offering benefits like cleaner water, improved hygiene and better performance, ultimately extending the life of your hot tub. The service frequency requirement is every 3 months regardless of use.
Swim Spa Drain & Refill Service
Swim Spa Drain & Refill Service is a maintenance procedure to drain, clean and refill the water in a swim spa (a combination of a hot tub and pool). This service is essential for keeping the swim spa in optimal condition and ensuring water quality, hygiene and the longevity of the equipment. The process typically involves several important steps to ensure the swim spa operates efficiently and remains safe.
Why is it Needed?
Swim spas, like hot tubs and pools, require regular maintenance to prevent the build-up of dirt, debris, chemicals and contaminants. Over time, water can become cloudy and harbour bacteria, making the chemical balance difficult to maintain. Draining and refilling the swim spa ensures the water stays clean, clear and safe.

The Process of Drain & Refill
- Draining the Water: The first step is draining the water from the swim spa. This can take some time depending on the size of the spa and the drainage system used. A pump or hose is typically used to remove the water.
- Cleaning the Swim Spa: Once the water is drained, the spa is thoroughly cleaned. This includes scrubbing the interior surfaces, cleaning the filters and removing any debris or dirt accumulated in the plumbing and equipment. It's also the time to check for any maintenance issues, such as worn-out filters, malfunctioning jets or leaks.
- Checking Equipment: After cleaning, Thames Pool Care may inspect and test the swim spa's filtration system, jets, pumps and heaters. This ensures everything is in working order before the new water is added.
- Refilling with Fresh Water: The next step is to refill the swim spa with fresh, clean water. This ensures that any old chemicals or contaminants are completely removed from the system. It may also involve adjusting the water temperature and checking the water chemistry.
- Balancing Water Chemistry: Once the swim spa is filled, the water’s chemical levels are balanced. This includes adjusting the pH, alkalinity, calcium hardness and adding sanitisers such as chlorine or bromine. Proper chemical balance is essential for maintaining clean water, preventing scaling and avoiding irritation to swimmers’ skin or eyes.
- Testing and Final Checks: Finally, the swim spa undergoes a full test run to ensure the system is functioning properly with the fresh water, and all settings are calibrated.
Benefits
- Clean Water: Ensures crystal-clear water free from contaminants.
- Better Water Quality: Improves the chemical balance for a healthier and more enjoyable swim experience.
- Prolonged Equipment Lifespan: Regular draining and cleaning prevents the build-up of harmful materials that can cause wear and tear on the system.
- Healthier Experience: Reduces the risk of infections or skin irritations from poor water quality.
A Swim Spa Drain & Refill Service is a key part of responsible swim spa ownership, ensuring a safe, hygienic and enjoyable experience. Depending upon use, this service is generally required every 6 months.
Do You Have A Question About Our
Drain & Refill Service?