Problems With Foam in Hot Tubs

Like swimming pools, hot tubs contain chemicals to keep the water clean and algae-free.

Removing Soap Residue From Swim Suits/Trunks

Solve your hot tub water foaming problem.Solve your hot tub water foaming problem.
But hot tubs are more prone to foam forming within them than swimming pools. There are a number of reasons why your hot tub might begin foaming, including the release of products into the tub or using the wrong amount of chemicals to treat the tub. It is possible to stop your hot tub’s water from foaming so you and others can enjoy the hot tub’s bubbles without any foaming problems.

Step 1

Wash your swim suit or trunks in your home's washing machine or sink using the recommended water temperature and amount of detergent listed on the suit's fabric tag. Soap residue on clothing can cause your hot tub's water to foam.

Step 2

Run your washing machine's rinse cycle twice to remove any soap residue that may be present in the suit or trunks' fabric, or rinse the suit/trunks in your home's sink twice under lukewarm running water.

Step 3

Dry the suit/trunks in your home's dryer or on a clothesline.

Removing Personal Product Residue

Step 1

Shower before entering your hot tub to remove any personal products from your body. Residue from deodorants, hair products and lotions can cause your hot tub’s water to foam.

Step 2

Dry off thoroughly with a clean bath towel before entering your hot tub.

Step 3

Have each individual planning to enter your hot tub shower to remove any personal products from their bodies. Have the individuals dry off thoroughly with a clean bath towel before entering your hot tub.

Changing Water Treatment Chemicals

Step 1

Purchase hot tub water treatment chemicals that do not contain fillers. Chemicals containing filers can cause the water in your hot tub to foam.

Step 2

Treat your hot tub's water by pouring the recommended amount of water treatment chemicals into your hot tub according to the instructions on the chemicals' labels. Using an excessive amount of water treatment chemicals or chemicals containing fillers in them can cause the water in your hot tub to foam.

Step 3

Clean your hot tub’s filter every month according to the instructions in your hot tub's user manual. Replace the filter yearly to keep grime and debris from re-entering your hot tub and causing the water to foam.

Step 4

Drain your hot tub every three months by opening the draining valve on the bottom of the hot tub, connecting a water hose and draining the water into a sewer or drain.

Step 5

Refill your hot tub with water and complete Step 2 of this section to treat your tub's water.

Things You Will Need

  • Washing machine
  • Laundry detergent
  • Dryer or clothesline
  • Shower
  • Bath towel
  • Hot tub water treatment chemicals
  • Hot tub filter
  • Water hose

About the Author

Nick Davis is a freelance writer specializing in technical, travel and entertainment articles. He holds a bachelor's degree in journalism from the University of Memphis and an associate degree in computer information systems from the State Technical Institute at Memphis. His work has appeared in "Elite Memphis" and "The Daily Helmsman" in Memphis, Tenn. He is currently living in Albuquerque, N.M.