Kenmore Excessive Drain Flow or Restricted House Drain

Softener frequently overflows drain during regeneration

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Possible Causes

Drain line run into undersized or clogged house drain, Drain flow control missing or damaged, Excessive water pressure, Incorrect drain line installation

How to Fix / Troubleshooting

Safety first: Be cautious of slippery floors and water damage. Shut off water if necessary.

Step-by-step checks:

  • 1. House drain capacity:
    • Ensure the softener drain discharges into a drain that can handle the flow (laundry tub, floor drain, etc.).
  • 2. Drain line flow control:
    • Verify the flow control orifice is present in the drain fitting on the valve head.
    • Replace if missing or damaged.
  • 3. Drain routing:
    • Ensure the drain line is properly secured and has an air gap.
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Repair Difficulty

Easy 2/5

Required Part

Drain Line Flow Control
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