Softener emits a strong musty or rotten-egg odor from the brine tank.

Safety first: Wear gloves and eye protection. Work in a well-ventilated area.

• Empty brine tank: Scoop out salt and pump or bail out brine. Dispose of according to local regulations.
• Clean tank: Wash the inside of the brine tank with a mild bleach solution (e.g., 1/4 cup household bleach per gallon of water). Scrub all surfaces and rinse thoroughly.
• Clean brine well and float: Remove the brine well and float assembly. Clean with the same solution and rinse well.
• Refill with proper salt: Use high-purity solar or pellet salt recommended by Tier1. Avoid salts with organic additives.
• Sanitize softener: Follow Tier1's sanitization procedure, typically involving adding a small amount of bleach to the brine well and running a regeneration.