Harvey softener intermittently supplies hard water, especially at high flow rates

Safety: No special safety beyond normal plumbing precautions.

• Check plumbing: Verify that all cold outlets intended to be softened are correctly routed through the Harvey softener and not partially bypassing it.
• Reduce peak demand: Avoid running multiple high-flow fixtures simultaneously if the softener is near its capacity.
• Regenerate: Perform a manual regeneration and retest hardness at various flow rates.
• Assess sizing: If intermittent hardness persists at high flows, the softener may be undersized or the resin may be degraded and require replacement.

Persistent channeling issues should be evaluated by a professional who can inspect the resin bed and installation layout.