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A Winter Guide to Filling Your Hot Tub

  |   Maintenance & Water Care, Ownership   |   No comment

As the winter frost sets in, there’s nothing more inviting than the prospect of a warm soak in your hot tub. However, filling a hot tub in the winter comes with its own set of challenges. In this blog, we’ll explore the essential steps and tips for safely and efficiently filling your hot tub during the chilly winter months.

Selecting the Right Day

Before filling your hot tub, conduct a thorough inspection. In winter, it is advisable to check the connections on the pumps and heaters to see if they are tight or not. Spas that have been winterized for shipping should be a little loose to allow for potential freeze expansion.
You can contact your local dealer to have them send out a tech service professional to inspect the spa if you aren’t sure or notice an issue that needs fixing. They can diagnose the problem, help fix it, and/or order any parts that you might need.

Water Source

A standard garden hose will work just fine for filling your hot tub in winter as long as the spa is filled directly into the JetPak ports or filter ports on X-Series.

Regular Maintenance


Knowing when to drain and refill your spa during the winter is essential for maintaining water quality and optimal spa performance. Several indicators suggest it’s time for a water change, even in colder months.
Here are a few key signs to look out for:
• If you notice a persistent cloudiness in the water, despite regular chemical treatments and filtration, it may be a sign of accumulated impurities.
• A strong and unpleasant odor, often indicative of high levels of dissolved contaminants, is a clear signal for a water change.
• Keep an eye on the spa water’s color – if it appears murky or discolored, it’s time for a refresh.
• If the total dissolved solids (TDS) level rises significantly or if you have trouble in maintaining balanced water chemistry, draining and refilling the spa becomes a proactive measure to ensure a clean and inviting environment for winter relaxation.
Always follow manufacturer guidelines and local regulations when draining and refilling your spa during the winter to optimize both water quality and the lifespan of your spa equipment. Throughout the winter season, routinely check your hot tub’s chemical levels.


When deciding where to drain the water from your hot tub during the winter, it’s crucial to prioritize environmentally responsible practices and local regulations. Avoid draining the water onto frozen ground or into storm drains, as this can lead to runoff issues and potential environmental harm. Instead, opt for a location where the water can be absorbed into the ground without causing erosion or flooding. Choose an area that allows for natural filtration and dispersion, such as a garden or a designated drainage area on your property. If unsure about local regulations, contacting your municipality or environmental agency for guidance ensures compliance with water disposal rules. By selecting a suitable drainage spot and adhering to environmental guidelines, you contribute to the preservation of your surroundings and minimize the impact of spa water discharge during the winter months.

Efficient Water Heating

Invest and purchase a hot tub that comes with a high-quality hot tub cover to retain as much heat as possible during the filling process. This can help speed up the heating time and conserve energy. Keep in mind that Bullfrog Spas heat at a rate of 2 to 4 degrees per hour depending on the size of your hot tub, as well as how cold it is outside.


Safe Surroundings


Ensure a safe pathway from your home to the hot tub. Winter weather often brings icy and slippery conditions, posing a risk for slips and falls. A clear, well-lit pathway not only makes the journey to and from the hot tub more convenient but also minimizes the chances of accidents. This is especially crucial when the hot tub is being used in the evening or at night, where reduced visibility can amplify the risks associated with icy surfaces. Creating a safe pathway involves regular snow and ice removal, as well as applying ice melt or sand to enhance traction.

You might also want to consider having warm towels and robes ready for a quick and cozy transition from the hot tub to indoors.
Filling your hot tub during the winter can be a rewarding experience with the right preparation and care. By following these steps, you can keep your hot tub well-maintained and ready for use during the winter months. Embrace the health benefits of hot tub use in winter, bundle up, step into the warmth, and let the winter relaxation begin!

AUTHOR - Bullfrog Spas

Bullfrog Spas is a premier brand of personalized premium hot tubs. With proprietary hydromassage technology and an eye for contemporary design, Bullfrog Spas is revolutionizing the concept of the portable hot tub and providing a relaxation experience unlike any other. Discover the award winning spa of the future today.

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