Runxin F116Q Automatic Softener Valve
The Runxin F116Q automatic softener valve is a top-mount automatic control valve designed for residential softening and ion exchange systems where automatic regeneration is preferred. Featuring both time-clock (F116Q1) and meter/volume (F116Q3) control options, it allows flexible regeneration scheduling to match your household water usage and hardness conditions.
This valve sequences through all standard softener operations — service, backwash, brine draw, slow rinse, brine refill, and fast rinse — without manual intervention. The integrated LED dynamic display shows current valve state, and a manual regeneration button lets you trigger cycles on demand. A long-outage indicator helps you know when the clock may need resetting after extended power interruptions.
Built with a hermetic sealed head and corrosion-resistant components, the F116Q provides dependable performance in residential water softening, boiler feed softening, and reverse-osmosis pretreatment systems that require softened water.
📐 Softener Tank Sizing Guide
Correct tank sizing helps achieve efficient regeneration and reduces salt use. These guidelines assume typical residential water use and hardness:
| Household Size | Approx Daily Water Use | Suggested Tank Diameter |
| 1–2 people | ~225–450 L/day | 6″–8″ |
| 3–4 people | ~450–900 L/day | 8″–10″ |
| 5+ people | ~900 L+/day | 10″–12″ |
Sizing Notes
- Harder water requires more resin volume.
- Larger tanks hold more resin, reducing frequency of regeneration cycles.
- Ensure the mesh and distributor system matches the valve’s flow capacity. (Industry best practice)
🕒 Regeneration Timing Recommendations
Because the Runxin F116Q supports both timer and volume regeneration control, here are recommended strategies:
Timer (Days Between Regeneration)
| Usage Pattern | Suggested Interval |
| Light/moderate usage | 3–5 days |
| Moderate usage | 2–3 days |
| High usage / high hardness | 1–2 days |
Volume Regeneration (If Meter-Based)
| Hardness Level | Volume Before Regeneration |
| Mild hardness | ~5 000–7 000 L |
| Moderate hardness | ~4 000–6 000 L |
| High hardness | ~2 500–4 000 L |
Notes
- Volume regeneration triggers based on actual water use, often resulting in better salt efficiency.
- Timer mode ensures regular cycles even with low usage.
📌 Practical Installation Advice
- Choose appropriate resin and brine tanks based on household water hardness and usage.
- Verify plumbing connectors (1″ inlet/outlet, ¾″ drain, ⅜″ brine) before installation.
- Program initial regeneration logic using either timer or volume mode that best suits usage.
- Check first few cycles to verify softness and minimal waste.
- Professional installation recommended if unfamiliar with controllers or valve programming.



