Spa water has a persistent musty or moldy odor

Safety first: Avoid using the spa until water quality is restored. Chemical exposure can be harmful; wear gloves and eye protection when handling spa chemicals.

Sanitize and purge:

• Test and balance water: Use a test strip to check pH, alkalinity, and sanitizer. Adjust to recommended ranges.
• Shock the spa: Add a non-chlorine or chlorine shock according to label directions for your spa volume.
• Use a plumbing purge product: Add a spa line purge product designed to remove biofilm and run pumps per product instructions.
• Drain and refill: After purging, drain the spa completely, wipe down the shell, and refill with fresh water.
• Clean or replace filter: Thoroughly clean the Dream Maker filter cartridge or replace if old.
• Maintain sanitizer: Keep sanitizer within recommended levels and shock regularly to prevent recurrence.