Water is soft at first but becomes hard before the next regeneration is due.

Safety first: No immediate hazard; adjustments are made at the controller.

Check usage and settings:

• Review your household water usage (number of occupants, high-use appliances).
• Enter the controller programming and verify hardness and capacity settings. Increase hardness setting if your actual hardness is higher than programmed.

Monitor performance:

• After adjusting settings, run a manual regeneration.
• Test water hardness daily before regeneration is due to confirm that softening capacity now lasts the full interval.

Resolution: If capacity is still insufficient even with correct settings, the system may be undersized for your usage or the resin may be partially fouled. Consult a Kinetico dealer about upgrading tank size or replacing resin.