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How to Winterize a Hot Tub

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One of the benefits of owning your own spa is the convenience of using it any time you like - day or night - all year-round. And as most spa owners would agree, there’s nothing quite as rejuvenating as a dip in the warm, bubbly water when the weather is frosty. Nevertheless, if you plan on shutting yours down for the season, you’ll want to make certain you do it properly to ensure your spa will look and perform next spring.

Living in California, we’re not lucky enough to experience snow drifts and icicles, but for those of you looking for help winterizing your spa, we’ve got you covered. Here is an easy, ten-step guide for proper spa winterizing provided by a Dimension One Spas dealer in Denver, Colorado — folks who have certainly seen their share of the white stuff. Follow this guide closely and get peace of mind knowing you’ve taken the right steps to protect your spa from the elements.

Winter Spa Preparation: How to Winterize a Hot Tub

  • No. 1: The very first thing you want to do when winterizing your hot tub is to shut the power off to your spa. Now you are ready to drain all the water from the spa. Why do we do this? Believe it or not, it isn’t to prevent the water from freezing when not in use. Removing the water from your spa reduces the chance of mold, mildew, or other contaminants growing inside the shell over the winter months.
  • No. 2: The components in your hot tub will do much better in the winter if they are protected from the cold and elements. Remove all pumps, (large jet pump(s) and smaller circulation pump(s)) and store them in your house. Taking them inside where the temperature is controlled will eliminate cracking, freezing or other damage.
  • No. 3: Remove the filter cartridge(s) from your spa. Now would be a good time to give them a quick clean, as you don’t want to store dirty filters through the winter, and it’s better to find them ready to use in the spring. Depending on how dirty they are, you may want to consider soaking them overnight. When they’re clean, wrap them securely in a plastic bag and store them in the garage. Be sure no water remains in the filter well.
  • No. 4: Remove the hose/drain cap and turn the valve to the open position. This process ensures any water created by condensation can drain from your spa. Pro tip: Leave the drain cap in the skimmer basket so you can find it again in the spring.
  • No. 5: Turn as many jets as possible to the open position. Turn the selector knob(s) to the middle position. Using a wet/dry vacuum, blow air through:
    • Every open jet face and drain cover
    • The open jet hoses in the equipment area
  • No. 6: Using the vacuum, draw air through all the same spaces.
  • No. 7: Blowing out the pipes is likely to create more water in the hot tub. Be sure to use a towel to dry any water on the seats and floor of your spa. Also, make certain to thoroughly dry any water on or around the equipment area. This is an important step. Any water left in your spa, even trace amounts can freeze and cause cracking which can be expensive to fix.
  • No. 8: Before putting the spa cover in place, give it a good cleaning inside and out. Be sure to secure it properly, making sure it fits snug in place.
  • No. 9: The last step is to secure your cover in place. Using a large plastic tarp, protect your cover by laying it over the top and securing it with rope or bungee cords. This provides a little extra help during strong winter wind gusts, and helps prevent rain or snow water from finding its way back into the spa.
  • No. 10: Well done! You’re through winterizing your spa! Now it’s time to relax and enjoy some great football for the next few months!

Knowing how to winterize a spa properly can mean the difference between an easy, hassle free process of getting back in the water come spring, and unexpected difficulty. No one wants to invest in a hot tub at home only to find out they failed to take the necessary steps to keep it looking and running great.

If you have questions about anything you’ve read here, or need help winterizing your spa or going back to summer mode , please don’t hesitate to call. Our family of skilled technicians is always ready to lend a hand!

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