Marlo High Salt Usage / Over-Regeneration

Softener uses excessive salt compared to expected consumption

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Possible Causes

Salt dosage set too high, Regeneration frequency too high, Incorrect capacity setting, Brine valve leak causing overfill

How to Fix / Troubleshooting

Safety first: No special hazards beyond normal handling of salt. Use proper lifting technique for salt bags.

Step-by-step checks:

  • 1. Review programming: Verify that the salt dosage (lbs per regeneration) and capacity are set according to Marlo's sizing for your unit.
  • 2. Check regeneration frequency: Ensure the unit is not set to regenerate more often than necessary (e.g., daily when every few days would suffice).
  • 3. Inspect brine valve: A leaking brine valve can cause excessive refill and salt dissolution. Check for overfilled brine tank and repair as needed.
  • 4. Monitor actual usage: Track the number of regenerations per week and compare to water usage and hardness to confirm if usage is truly excessive.

When to replace parts: If the brine valve is leaking or not closing fully, replace the Marlo brine valve assembly. Adjust programming to reduce unnecessary regenerations.

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Repair Difficulty

Easy 2/5

Required Part

Marlo brine valve assembly
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