AO Smith Resin Loss into Plumbing

Softener resin is found in household plumbing fixtures (small amber beads in aerators).

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Broken lower distributor, Cracked riser tube, Missing or damaged bottom screen, Over-pressurization of tank

How to Fix / Troubleshooting

Safety first: Place the softener in bypass immediately to prevent further resin migration. Unplug the unit.

Inspect fixtures:

  • Remove aerators and shower heads to clear resin beads.

Inspect resin tank internals:

  • Depressurize and remove the control valve head.
  • Inspect the riser tube and bottom distributor/screen inside the tank for cracks or breakage.

Replace the riser tube and bottom distributor assembly and, if significant resin has been lost or contaminated, replace the resin media. Thoroughly flush household plumbing after repairs.

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Repair Difficulty

Professional Required 5/5

Required Part

Riser Tube and Bottom Distributor
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