The Holman CO1601 is a next-generation, battery-operated tap timer designed for easy watering of pots, hanging baskets, flower beds, shrub areas, and small lawns. No plumbing or electrical work required!
🔧 What You’ll Need
- 1x Holman CO1601 Tap Timer
- 1x 9V Alkaline Battery (good quality)
- Optional: Pressure Reducer and Air Release Valve (for low-pressure systems)
⚙️ Key Features
- Simple 3-step programming
- Automatic and manual watering modes
- Rain Off mode to pause watering
- Battery life indicator (flashing LED)
- Rated to 600kPa water pressure
- 1-year warranty
🛠️ Installation
- Attach the timer to your garden tap.
- Insert a fresh 9V alkaline battery.
- Connect your hose or irrigation system.
- (Optional) Install a pressure reducer or air release valve if using a low-pressure drip system.
🧠 Programming in 3 Easy Steps
- Set the Run Time
Turn the left dial to choose how long you want the water to run (2 to 240 minutes). - Set the Interval
Turn the right dial to choose how often it should water (every 6 hours, 12 hours, 24 hours, etc.). Press and Hold ENTER
Hold the ENTER button for 3–5 seconds. Your timer is now set!Please note: The timer will not start watering immediately. It will begin after the selected interval has passed.
💧 Manual Watering
Want to water outside your schedule?
- Turn the Interval dial to MAN.
- Press ENTER.
- The timer will run for the set Run Time, then return to your programmed schedule.
❓ Frequently Asked Questions
Q: My timer isn’t turning on after I set it. Why?
- It waits for the full interval before starting.
- Check battery quality.
- Use a pressure reducer if water pressure is too high.
Q: Can I set it to water at a specific time?
- No. The timer starts counting down from when you press ENTER.
Q: Will manual mode erase my settings?
- No. It will resume your programmed schedule after the manual run.
Q: How do I reset the timer?
- Remove the battery for 5–10 minutes, then reprogram.
Q: Can I use it in winter?
- Not recommended. Remove it or let it drain if temperatures drop below 3°C.
Q: My timer won’t shut off. What should I do?
- Use a pressure reducer.
- Avoid using with gravity-fed or pump systems—use model CO1603 instead.
🧼 Maintenance Tips
- Clean the timer by soaking the top in a vinegar/water mix and running it manually.
- Replace batteries regularly with alkaline types.
- Store indoors during winter unless in tropical climates.
Article verified: CO1601, 2 Dial Tap Timer