How To Properly Clean A Hot Tub

Posted by Tim Roadnight
How To Properly Clean A Hot Tub

Hot tubs and spas need a good cleaning every once in awhile. If you purchase a used hot tub, or have just bought a house with a hot tub, you’ll want to make sure that you clean it out really well before hopping right in. We’ve got some cleaning tricks to help you get started.

What You Will Need:

  • Bucket
  • Sponge
  • Hose
  • Wet/Dry Shop Vac
  • Vinyl Cover Protector
  • Spa Filter Cleaner
  • A Bathroom Cleaner
  • Chlorine
  • Shock
  • Test Strips


Examine the condition of your hot tub’s filter system. Does the filter need to be replaced? Or can it just be cleaned? If you see any rips or tears, it is best to just get a new one. If it is only slightly dirty, you may be able to purchase a special cleaner for the filter that will remove a lot of the dirt and gunk.

Spa Cover

Take a look at the cover to your hot tub. This is an important part of your spa because it helps to keep out dirt and debris. You’ll want to make sure it is in top shape, and protected from UV rays. Use a cleaner to clean it up and check out the condition. Believe it or not, olive oil can work wonders when it comes to removing sap. If it is filled with water, you probably want to discard it and get a new one, otherwise you’ll be dealing with all kinds of mold and mildew issues. If it is in good condition, let it air dry and then apply a vinyl cover protector spray to keep it from getting damaged in the sun.


The best tool to decontaminate your hot tub is chlorine. First, dissolve the chlorine in a bucket of water. This will keep it from eating away at the walls of your hot tub. You will want to use a higher concentration of chlorine to be sure that you are killing off anything that is living in your tub. Be sure the tub is full, or even a little bit more full than when you usually run it. Turn on the system and slowly pour in the bucket of dissolved chlorine. Let the spa circulate for about 30 minutes with the cover on to get the full benefits. Turn the jets on their max setting and circulate the air for 5 minutes on and 5 minutes off.


After you’ve chlorinated the hot tub, you’ll want to be sure to remove any oils or scum build up that might be residing. Baking soda and vinegar make great cleaning agents and will not damage your hot tub. After you scrub it all out, you’ll want to drain out the water.

Finishing Up

Reinstall the filter cartridge, refill your hot tub and be sure to test the water levels for the proper chlorination. You’ll also probably want to use shock to make sure there is no bacteria left hiding. Pour or drop in a shock tablet and let the spa run overnight or for 8 to 12 hours. On completion, your hot tub should be good to go!

Pool Knights are the expert at cleaning out hot tubs and spas. Doing it yourself can get complicated and messy. Why not call in the professionals? We’d love to help you out, so contact us today!

Leave a Reply