Hot Tub Maintenance & Winterizing Tips

How To Winterize Your Spa!
Your Hot Spring spa is designed for year-round use in all climates. Ensure maximum energy efficiency in your spa any time of the year with these steps.

  • Do NOT put the spa temperature below 100 degrees!
  • Do NOT drain your spa during a power outage. Leave the cover on. When the power resumes, the spa’s default setting will activate. If you drain your spa, residual water will remain in the lines and equipment and will FREEZE, damaging your spa!
  • Hot Spring Spas are fully foamed and totally insulated- they will experience minimal temperature loss if you leave the cover on and locked.
  • See if you need a replacement: If you see signs of sagging, fading or cracking, get a replacement cover for your spa
  • Make sure your spa is not set to “Summer Timer Mode.”
  • Should you have to leave your spa drainedcontact us for proper winterizing of your spa. (Our technicians are trained to successfully remove all water from the internal lines and equipment.)
  • Buy a Winter Blanket: Keep your spa hot year-round, even in areas with freezing temperatures by purchasing a Winter Blanket.
  • Install the Winter Blanket: Install the vinyl-covered, fiberglass insulated Winter Blanket inside of the equipment compartment door, adding additional precaution against partial freezing to some of your spa’s components while maximizing energy efficiency.
  • Look for wear and tear: Check that your cover is at peak performance level by looking for signs of wear and tear.
  • Check the seal: Make sure the seal is still tight and intact so heat doesn’t escape.
  • See if you need a replacement: If you see signs of sagging, fading or cracking, get a replacement cover for your spa.
  • Remove snow and ice: Regularly brush snow off of your spa cover and splash warm water on ice rather than prying it off.
  • Stay maintained for vacation: If you plan to leave for few days during the winter months, keep your spa maintained with these tips:
  • Adjust pH: Before you go, adjust the pH according to the Owner’s Manual.
  • Sanitize: Sanitize the water with super chlorination or the new Hot Spring MPS Chlorine-Free Oxidizer according to instructions.
  • Lock cover: Lock down the cover to prevent access.
  • Lock light and jets: Lock the light and jets feature on the control panel (on 1998 models).
  • When you return: Upon your return, balance the pH and sanitize the water prior to using.


If you plan to be away from home a week or longer, call us for more tips on winterizing your spa, or check your Owner’s Manual for additional instructions.

Keep your spa water clean from algae, bacteria and other unwanted impurities by maintaining a safe amount of sanitizer.  With too much sanitizer in your spa water, your lungs, skin and eyes may become irritated.

Hot Spring recommends the following sanitizers:

  • EverFresh Water Care System with Hot Spring MPS Chlorine-Free Oxidizer
  • Sodium Dichlor (chlorine)
  • Granular bromine
  • FreshWater® Biguanide Water Care or Baqua Spa™ For 1998 to current      spa models only

DO NOT use tri-chlor chlorine, any type of compressed bromine or chlorine, acid or any type of sanitizer which is not recommended above. If in doubt, please contact our Service Department: (800) 649-5952


Soak in your spa’s sparkling clean water by following these simple cleaning tips courtesy of Hot Spring Spas.

For the whole spa: Use a mild non-abrasive, non-sudsing cleaner and a soft rag or nylon scrubber to remove dirt build-up

For minor surface cleaning: Use common baking soda to clean small surface areas

For spa pillows: Follow the instructions in your Owner’s Manual to remove and clean your spa pillows

For vinyl cover: First remove the cover and spray it lightly with a garden hose to loosen any dirt or debris that might have built up. Then, using a mild soap solution (1 teaspoon dishwashing liquid with 2 gallons water) or baking soda, scrub the vinyl in a circular motion with a large sponge and rinse with a garden hose. Rinse the bottom of the cover without using soap, and wipe it clean with a dry rag. To condition the cover after cleaning, apply a thin film of Hot Spring Cover Shield™ product.

Helpful Hint: To keep detergent and soap residue out of your spa water, shower without soap before soaking in your spa, and instead of washing your bathing suit use the rinse cycle.

Clean Your Spa Filter Cartridges

Because mineral particles or calcification from hard water can clog any water filtration system, we recommend following these light cleaning tips each month to keep your spa’s water flowing properly.

Spray cartridges: Spray each cartridge with a garden hose, rotating while spraying to thoroughly remove any debris between filter pleats

Use filter cleaner: Use Spa guard Filter Cleaner to keep your filters clean and in good operating condition

Replace filters: While cleaning your filters will help keep water running smoothly, you should replace your filters every three years with genuine Watkins replacement filters

Replacing Your Spa Water

While following spa water cleaning tips will keep your water fresh longer, soaps and detergents can build over time in your spa to cause residue.  Know how to replace your water with these steps

Drain and refill tub: Following the instructions in your Owner’s Manual, drain and refill the water in your spa to clear detergent and soap residue that may have accumulated over time

Get pre-filter: For sparkling clean water right from the start, use the CleanScreenTM; Pre-Filter when filling your spa

Attach pre-filter: When using the CleanScreenTM: Pre-Filter, attach it to an ordinary garden hose to remove organic contaminants, metals like copper and iron, and tannins from your new water.

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