Softener causes a noticeable drop in water pressure throughout the house when in service mode.

Safety first: Unplug the unit and use the bypass valve to isolate the softener when disassembling. Depressurize by opening a faucet.

• Compare bypass vs service: Place the softener in bypass and check household pressure. If pressure improves significantly, the restriction is within the softener.
• Inspect inlet screen: Remove the inlet connection and check for a sediment screen or debris at the inlet port. Clean thoroughly.
• Check bypass valve position: Ensure the bypass is fully in the service position and not partially closed.
• Inspect turbine and valve passages: Remove the turbine assembly and check for debris. Inspect valve ports for scale or resin beads and flush as needed.
• Evaluate resin bed: If restriction persists, the resin bed may be fouled or compacted. Consider resin cleaning (iron remover) or full resin replacement if the bed is severely degraded.