Harvey softener installed recently but water still feels hard and limescale persists

Safety: Confirm all isolation valves are accessible before adjusting.

• Verify bypass: Ensure the Harvey bypass valves are correctly set to service, not bypass.
• Check plumbing orientation: Confirm inlet and outlet connections are not reversed on the Harvey valve.
• Set hardness: Program the correct incoming hardness into the control.
• Run commissioning regeneration: Perform a full manual regeneration as per the installation guide, then allow several days for existing scale to begin dissolving.

If hardness remains unchanged after correct commissioning, have the installation checked by a qualified installer.