Can You Leave a Hot Tub Empty? All You Need to Know About Hot Tub Maintenance

By Shawn T

June 13, 2023

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Soaking in a hot tub is undoubtedly one of life’s simple pleasures. However, this relaxing experience requires some knowledge about maintenance and upkeep. A common question that seems to bubble up for many hot tub owners is: “Can you leave a hot tub empty?” That’s the burning issue we’re diving into today, along with other hot tub mysteries that need to be addressed. So, without further ado, let’s dive right in!

Can You Leave a Hot Tub Empty?

It seems like a no-brainer, right? If you’re not using it, you should be able to leave it empty. However, the answer is not as simple as it seems. Yes, you can leave a hot tub empty, but it’s not always advisable to do so. It depends on several factors such as the duration, the weather conditions, and the condition of your hot tub.

Emptying Your Hot Tub: How Long is Too Long?

When it comes to draining your hot tub, the timing matters. A hot tub can be left empty for a few days, even a week, without causing major problems. However, if you’re going away for an extended period, or shutting it down for the winter, there are precautions you need to take. If left empty for too long, the seals and gaskets in your hot tub could dry out and crack, leading to costly repairs.

Weather Conditions and Your Empty Hot Tub

Another significant factor to consider is the weather. In warmer climates, leaving a hot tub empty for extended periods might not be a problem. However, in freezing conditions, an empty hot tub can quickly become a big issue. Water remaining in the pipes can freeze, expand, and cause serious damage.

The Condition of Your Hot Tub Matters

Finally, the state of your hot tub can influence whether it can be safely left empty. Older hot tubs, or those that are already showing signs of wear and tear, are more likely to suffer damage when left empty. It’s essential to take this into account before deciding to drain your tub.

Why Drain a Hot Tub in the First Place?

One might ask, “Why bother draining the hot tub at all?” Well, regular draining and cleaning are crucial aspects of hot tub maintenance. The water in a hot tub needs to be completely replaced every three to four months, depending on usage and water quality.

Keep It Clean: Importance of Regular Draining

By draining and cleaning your hot tub regularly, you can ensure that the water you soak in is clean and free from any harmful bacteria. Besides, who wants to take a dip in murky, unhygienic water, right?

Prolonging the Life of Your Hot Tub

Regular draining and cleaning can also extend the life of your hot tub. It helps to prevent build-up of minerals and other deposits that can damage your hot tub’s mechanical parts. Plus, a clean tub is a happy tub!

Optimizing Your Hot Tub’s Performance

Draining your hot tub allows you to clean the filter, jets, and other components that keep your tub running smoothly. This can lead to better water circulation and more efficient heating, ensuring that your hot tub experience is always top-notch.

Steps to Safely Drain and Leave Your Hot Tub Empty

Now that we’ve established when and why you might need to drain your hot tub, let’s walk through the steps to safely do so.

Step 1: Turn off the Power

This might seem like a no-brainer, but you’d be surprised how easy it is to overlook. Always remember to turn off the power before draining your hot tub. This ensures your safety and prevents damage to the hot tub’s systems.

Step 2: Connect the Hose and Drain

Most modern hot tubs have a simple drain valve that you can attach a garden hose to. Once you’ve connected the hose, you can open the valve and start draining the water. Ensure that the draining water doesn’t flood your or your neighbor’s property!

Step 3: Clean the Tub

Once the water has drained, it’s time to clean your hot tub. Use a non-abrasive cleaner and soft cloth to scrub the tub’s surfaces. Pay extra attention to the jets and any crevices where grime might build up.

Step 4: Clean and Replace the Filter

Your hot tub’s filter plays a crucial role in keeping your water clean. Remove the filter and clean it with a hose and, if necessary, a filter cleaning solution. If your filter is old or damaged, consider replacing it with a new one.

Step 5: Refill and Balance Your Water

Refill your hot tub, turn the power back on, and balance the water using the appropriate chemicals. It’s also a good idea to shock the water to kill any bacteria and ensure your tub is ready for use.

What Happens if You Leave a Hot Tub Empty?

Leaving your hot tub empty has its consequences. Understanding these risks can help you make an informed decision.

Dryness and Damage to Seals

As mentioned before, when a hot tub is left empty, the seals and gaskets can dry out and become brittle, which may cause them to crack and leak. The repair or replacement of these parts can be quite costly.

Potential for Freezing

Again, if you live in a cold climate, there is the risk that any residual water in the pipes and components of the hot tub could freeze. This can cause the pipes to burst, leading to significant damage.

Accumulation of Debris

An empty hot tub can also become a catch-all for debris, insects, and even small animals. If not cleaned out before refilling, this debris can clog your filter and damage your hot tub’s systems.

FAQs About Leaving a Hot Tub Empty

Can you leave a hot tub empty during winter?

It’s not recommended to leave a hot tub empty during winter, especially in cold climates. Any residual water in the pipes can freeze and cause significant damage. If you must leave it empty, it’s crucial to winterize the hot tub properly, which includes blowing out the lines to ensure no water remains.

Can you leave a hot tub empty in the summer?

Yes, a hot tub can be left empty during the summer, but not for extended periods. The seals and gaskets may dry out and crack if left dry for too long.

How often should you drain a hot tub?

It’s generally recommended to drain and clean a hot tub every three to four months. However, if the water becomes cloudy or has an odor even after treating it with chemicals, it should be drained and refilled.

How long does it take to drain a hot tub?

The time it takes to drain a hot tub can vary based on the size of the tub and the method used to drain it. However, on average, it takes about 1-2 hours to drain most hot tubs.

Can leaving a hot tub empty damage it?

Yes, leaving a hot tub empty for extended periods can potentially damage the seals, gaskets, and pipes, especially in colder climates.

What should I do if I need to leave my hot tub empty for a long time?

If you need to leave your hot tub empty for a long time, it’s recommended to winterize it to protect the components. This includes draining the tub, blowing out the lines, and covering the hot tub to protect it from debris.

Final Thoughts

So, can you leave a hot tub empty? The answer is, it depends. As a hot tub owner, it’s crucial to understand the potential risks and take the necessary precautions when leaving your hot tub empty. Proper care and maintenance can go a long way in ensuring that your hot tub remains a source of relaxation rather than a cause for concern.


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