Softener installed but some outlets remain hard while others are soft

Safety: Plumbing work must be done with water isolated and lines depressurized.

• Verify connections: Confirm that the Cillit softener inlet is connected to the raw supply and the outlet to the house distribution, not reversed.
• Check for cross‑connections: Look for any mixing valves or loops that might connect hard and soft lines.
• Trace piping: Use hardness testing at various taps to map which lines are soft and identify where hard water is entering the system.
• Correct plumbing: Reconfigure piping to ensure all intended outlets are supplied from the softener outlet.