1. You haven’t opened your cover in a while.

Even though you may not use your hot tub every day, it’s a good idea to open your hot tub lid and let it air out regularly. When you sit in your hot tub, all the oils, shampoos, lotions and soaps are rinsed from your body and then get trapped under the cover once you close your lid.

Solution: It’s a good idea to float a special sponge, like Zorbie or ScumBug, that’s designed to absorb oils from the surface of the water.

2. Your water level is too high.

If you keep the water level in your hot tub too high, there is a chance that precipitation and steam is causing mildew to form under the cover and creating a smell.

Solution: Leave about 6” of air space between your water and the underside of the lid.

3. Your hot tub is lacking the proper sanitization.

Always check your sanitizer, and make sure you are maintaining your bromine or chlorine levels.

Solution: A good rule of thumb is to add 1-2 TBS of chlorine or bromine granules like Dazzle Chlorine or Bromine Granular when you get out of the hot tub.

How do you clean the underside of the lid?

To clean the underside of your cover, use a garden hose, or a bucket of water and a soft cloth to wipe it down. Then, use Dazzles surface cleanse or diluted bleach solution to scrub it clean. Always make sure to rise with clean water after cleaning.