Runxin F117Q Automatic Softener Valve
The Runxin F117Q automatic softener valve is a top-mount softener control valve engineered to automate the regeneration process in ion-exchange water softening systems. The valveβs built-in controller sequences through all standard softener cycles β including service, backwash, brine draw, slow rinse, fast rinse, brine refill, and return to service β according to preset timer schedules.
This model is suited for residential and light commercial water softening systems where automatic, timer-based regeneration is preferred or required. The F117Q is typically mounted on standard resin and brine tanks and uses a simple timer interface for programming.
By automating full regeneration cycles, the Runxin F117Q reduces manual intervention and helps maintain consistent softened water quality when water usage patterns are relatively predictabl
π Softener Tank Sizing Guide
Selecting the right softener tank size ensures efficient regeneration and adequate resin capacity for your household or facility.
Common Sizing Guide
| Household/Use Case | Daily Water Use (Approx) | Suggested Tank Diameter |
| Large household | ~900β1 500 L/day | 12β³ |
| Medium household | ~450β900 L/day | 10β³ |
| Light commercial or larger residence | ~1 500 L+/day | 12β³+ |
Sizing Considerations
- Harder water requires more resin volume to prolong time between regeneration cycles.
- Larger tanks reduce regeneration frequency but require more installation space.
- Tanks must match valve mounting standards (thread size and riser pipe compatibility).
π Regeneration Timing Recommendations
Because the F117Q is timer controlled, regeneration is scheduled based on elapsed time rather than water consumption.
Typical Timer Intervals
| Usage Pattern | Recommended Interval |
| Medium usage, moderate hardness | Every 2β3 days |
| Higher usage or high hardness | Every 1β2 days |
| Lower usage or mild hardness | Every 4β5 days |
Notes
- These are starting points β actual intervals should be tuned based on softened water quality and salt usage.
- If hard water is detected before the next cycle, shorten the interval.
π Practical Installation Advice
- Confirm system capacity: Ensure the resin tank and brine tank are sized for your flow and capacity needs.
- Match valve connections: Use correct fittings for 1ΒΌβ³ inlet and outlet.
- Program the timer: Start with conservative intervals and adjust based on performance.
- Stable power: Ensure a reliable 12 V DC supply for uninterrupted operation.




