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How Often Should I Change the Water in My Hot Tub or Swim Spa?

Whether you love relaxing in a hot tub or staying active in a swim spa, the quality of the water can make or break your overall enjoyment. Below, we’ll talk about how often you need to drain and refill the water in your backyard retreat, so you can have a pleasant and refreshing experience every time you soak or swim. Here’s what you should know!

Why You Should Change the Water in Your Hot Tub or Spa

When your hot tub or spa has fresh, clean water, you’ll be able to enjoy each dip to the fullest. Crystal-clear water not only looks inviting but also creates a hygienic environment. Plus it feels better on your skin. However, even with regular cleaning, contaminants like oils, dirt, and bacteria can build up over time. This can affect the overall balance of your spa or hot tub water, leading to issues like cloudiness or unpleasant odors. Imbalanced water chemistry can also damage the equipment. To learn more about water maintenance for your spa, you can also contact your local spa dealer.

By making regular water changes a part of your maintenance routine, you’re ensuring a consistently pleasant experience. This simple step can free your spa from the problems that come with water past its prime. It can also keep the running parts working at their best for longer. This way, you can enjoy many years of fun and relaxation in an environment that’s safe and enjoyable for you and your guests.

How Do You Know When It’s Time for a Change?

The general rule of thumb is that you should change water in a swim spa or hot tub every three to four months. This is usually enough to maintain water quality. But the frequency also depends on a few factors. How often you use your hot tub or spa, how many people regularly enjoy it, and the environmental conditions in your area all play a role. For example, if you use your swim spa every day for exercise or if you host hot tub parties every weekend, you may have to change the water more frequently. This means you don’t always need to wait for 3 months. It might be time to refill your spa with new water once you notice these signs:

  • Cloudy Water: If your spa has water that appears cloudy or murky, it’s a sign that impurities have built up.
  • Unpleasant Odors: A strong or unpleasant smell could mean there are bacteria or contaminants in the water.
  • Foaming: Too much foam on the water’s surface might mean there’s residue, and it’s time for fresh water.
  • Skin Irritation: This can happen even when the water looks clean. If you or others experience skin irritation, it’s a sign that the water quality might be off.
  • Difficulty Balancing Chemistry: If you’re having a harder time keeping the water in your spa balanced despite regular water testing and adjustments, it might be time for draining and refilling.

Steps for Draining and Refilling Your Hot Tub or Swim Spa

If you want to keep your hot tub or spa water clean and clear, you need to follow a consistent schedule for draining and refilling. As mentioned, changing the water every three or four months is ideal. Here are simple steps to guide you through the process:

Step 1: Power Off – Before you start draining your hot tub or spa, turn off the power at the breaker.

Step 2: Drain the Water Properly – You have a few options when it comes to removing dirty water. Some spa or hot tub owners prefer using the hose because it’s simpler. Others prefer using a pump because it’s faster. If your spa is hooked up to a drainpipe, you can also just open the valve. No matter which option you choose, attach it securely. Make sure that the water only gets released in areas with good drainage. This can prevent the water from flooding your yard.

Step 3: Clean The Spa Interior – Wipe down the interior surfaces using a mild spa surface cleaner. Pay special attention to areas with visible dirt. It’s also a good time to check and clean the water filters. Rinse everything thoroughly.

Step 4: Refill with Fresh Water – Attach a hose to a water source and start refilling your hot tub or spa. You can also choose a hose that comes with a filter to make sure that only clean water passes through. Keep an eye on your spa while refilling and take note of how much water it holds to prevent overfilling.

Step 5: Test the Water in Your Spa – Use a testing kit or testing strips to check your spa or hot tub’s chemical balance and pH levels. Adjust the chemicals accordingly to keep the water properly balanced.

Other Water Care Tips Between Changes

With proper water maintenance, you won’t need to replace your hot tub or spa water as often. Here’s how you can extend the time between changes, so you can enjoy sparkling water for longer:

  • Check your spa’s chemical levels once or twice a week or as soon as you notice anything unusual. This makes it easier to keep the water chemistry balanced.
  • Clean the filters regularly and replace them as needed. Doing this helps improve water circulation and filtration efficiency.
  • Use a hot tub or swim spa cover. A high-quality cover can keep the heat in and keep debris out. It can also prevent water evaporation when your hot tub or swim spa isn’t being used. When water evaporates too quickly, it can affect the water balance, making it necessary to change the water more frequently.
  • Shower before getting in. This can cut down the amount of oils, lotions, and other similar substances that can cause the water to turn cloudy.
  • Be proactive when it comes to monitoring signs of dirty water, such as cloudiness or unusual odors. Fixing these issues early can save you time and effort in the long run.

Keep Your Spa or Hot Tub Water Crystal Clear

Keeping the water clean and safe is one of the most important aspects of hot tub or spa ownership. By being aware of how often you should change the water as well as adopting proper maintenance practices, you can look forward to many hours of fun and relaxation. So, make water care a priority and dive into your backyard oasis, knowing it’s always clean and ready for a great time.

To learn more about choosing the best hot tub or spa for your home, download our free buyer’s guide now.

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