SoftPro water softener causes a sulfur or rotten egg smell in the water after installation.

Safety first: Odors are usually not immediately dangerous but can indicate water quality issues. If in doubt, have the water tested.

• 1. Determine source: Test cold water before and after the SoftPro softener. If odor is present only after the softener, the resin tank may harbor bacteria.
• 2. Sanitize softener: Follow SoftPro's sanitization procedure, typically involving adding a measured amount of unscented household bleach to the brine well and running a full regeneration.
• 3. Flush plumbing: Run all faucets, especially rarely used ones, for several minutes to clear stagnant water.
• 4. Address hydrogen sulfide: If odor is present in raw water, a dedicated sulfur filter or oxidizing system may be required ahead of the SoftPro softener. The softener alone is not designed to remove significant hydrogen sulfide.
• 5. Consider resin replacement: If odor persists after sanitizing, the resin may be heavily fouled and should be replaced.