BWT softener installed, but water remains untreated because the unit is in permanent bypass.

Safety first: Confirm which valves control the softener before adjusting. Sudden changes can affect the water supply.

• Identify positions: Refer to the BWT connection block diagram to identify the Service, Bypass, and Closed positions.
• Set to service: Move the bypass lever or valves to the Service position so water flows through the softener.
• Check for stiffness: If the lever is stiff, gently work it back and forth. Do not force it, as internal damage may occur.
• Test water: After a few minutes, test the water hardness at a tap to confirm softening.

If the bypass valve will not move or leaks in the Service position, it may need replacement.