BWT softener causes banging or water hammer noises in pipes during regeneration

Safety first: Do not attempt to adjust internal valve timing without proper documentation.

• Check pressure: Measure mains pressure. If high, install or adjust a pressure reducing valve to BWT’s recommended range.
• Install hammer arrestor: Fit a water hammer arrestor near the softener or on problem branches.
• Secure pipes: Ensure all nearby pipes are properly clipped and supported to reduce movement.
• Regeneration timing: Schedule regeneration for night hours when usage is low to minimize audible impact.

If hammer persists, consult a plumber or BWT technician to evaluate valve operation and system design.