Spa water is foamy and has a strong odor despite normal operation

Safety first: Poor water chemistry can irritate skin and eyes. Avoid soaking until water is balanced.

Steps to correct foamy, smelly water:

• Test water: Use Strong Spas-recommended test strips or a test kit to check sanitizer, pH, alkalinity, and hardness.
• Shock the spa: Add a non-chlorine or chlorine shock according to label directions to oxidize contaminants.
• Use foam reducer sparingly: A defoamer can provide temporary relief but does not fix the underlying issue.
• Drain and refill: If water is old (3–4 months or more) or heavily contaminated, drain the spa completely, clean the shell, and refill with fresh water. Replace or deep-clean filters.

When to call a technician: Not typically required unless there are persistent issues with the ozonator or salt/chlorine generation system.