1. Product Overview
The Diivoo 3 Zone Programmable Automatic Irrigation Timer is designed to automate your garden watering, providing flexibility and efficiency for different areas of your lawn, yard, or pool. It features independent programming for three zones, rain delay functionality, and a manual watering mode.

Figure 1: Diivoo 3 Zone Water Timer
Video 1: How to set up Diivoo 3 Zone Water Timer
2. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Diivoo |
| Model Number | GM-HCT-378-EUGN |
| Material | Plastic |
| Timer Type | Ac Pro |
| Type | Garden Water Timers |
| Working Pressure | 0.05-0.8 Mpa (0.5-8 bar) |
| Working Temperature | 3-45℃ |
| Flow Rate (at approx 4 bar) | ≥ 30l/min |
| Water Inlet | 3/4 " Internal Thread |
| Water Outlet | 3/4 " External Thread |
| Power Supply | 2 x 1.5 V AA Alkaline Batteries (not included) |
| Flow Medium | Clean Fresh Tap-Water |
| Water Duration | 1-59 seconds / 1-360 minutes |
| Water Frequency | 1-23 hours / 1-15 days |
| Product Dimensions | 17D x 9W x 6.5H centimetres (approx. 5.3in x 4.9in) |
| Waterproof Rating | IP54 |

Figure 2: Product Dimensions

Figure 3: Product Components and Connections
3. Setup
3.1 Battery Installation
- Open the battery compartment cover on the back of the timer.
- Insert 2 x 1.5V AA alkaline batteries (not included), ensuring correct polarity.
- Close the battery compartment cover securely.

Figure 4: Battery Installation and Leakproof Features
3.2 Connecting the Timer
- Ensure the water timer is screwed securely to any standard 3/4" garden outdoor hose.
- Connect your garden hoses to the three independent outlets (Zone A, B, C) at the bottom of the timer.
- Use the provided aluminum alloy filter, sealing washers, and thread seal tape to prevent leaks.
4. Operating Instructions
4.1 Setting the Current Time
- Press the "NOW A/B/C" button to select the current time setting.
- Use the "+" and "-" buttons to adjust the hour and minute.
- Press "OK" to confirm.
4.2 Programming Automatic Watering
The timer allows independent programming for each of the three zones (A, B, C).
- **Select Zone:** Press and hold the "ESC OFF" button for 3 seconds to open or close the A/B/C zone program settings. Use "NOW A/B/C" to select the desired zone (A, B, or C).
- **Set Start Time:** Press the "OK" button to enter the watering program setting. Adjust the start time using the "+" and "-" buttons.
- **Set Watering Duration ("How Long"):** Press "OK" again. Set the watering duration from 1 second to 360 minutes using the "+" and "-" buttons.
- **Set Watering Frequency ("How Often"):** Press "OK" again. Set the watering frequency from 1 to 23 hours or 1 to 15 days using the "+" and "-" buttons.
- **Check Next Start Time:** Press "OK" to view the next scheduled watering time.
- The timer will now run automatically according to your set program.

Figure 5: Automatic Watering Settings

Figure 6: Automatic Watering Mode Details
4.3 Manual Watering Mode
Manual watering takes precedence over preset watering programs.
- Ensure the desired zones A/B/C are active (not OFF).
- Press the water faucet icon button (usually labeled "OK" or similar, with a faucet symbol) to activate manual watering.
- Select the watering time from 1 second to 360 minutes using the "+" and "-" buttons.
- Press "OK" to start manual watering.

Figure 7: Manual Watering in Use

Figure 8: Manual Watering Mode Details
4.4 Rain Delay Function
The rain delay function allows you to skip the next watering schedule to conserve water during rainy periods.
- In the "ON" state, press and hold the "+" button for 5 seconds to turn on or off the Rain Delay.
- The icon "DELAY" will display on the screen, and the "NEXT START" time will update accordingly.
- To cancel the rain delay, press and hold the "+" button again for 5 seconds.

Figure 9: Rain Delay Activation
4.5 Child Lock
To prevent accidental changes to your watering schedule, the timer includes a child lock feature.
- Press and hold the "ESC" + "-" buttons simultaneously for 3 seconds to switch the child lock on/off.
- A lock icon will appear on the display when the child lock is active.
4.6 OFF Mode
The OFF mode temporarily suspends all watering schedules for a selected zone without deleting the program.
- Press "NOW A/B/C" to select the zone you want to turn off.
- Hold "ESC/OFF" for 3 seconds. Only the current time, battery indicator, and "OFF" will show on the display for that zone.
- To reactivate the zone, hold "ESC/OFF" for 3 seconds again.
5. Maintenance
5.1 General Care
- Keep the timer clean by wiping it with a soft, damp cloth.
- Do not use abrasive cleaners or solvents.
5.2 Battery Replacement
- Replace batteries when the low battery indicator appears on the LCD display.
- Use only 2 x 1.5V AA alkaline batteries.
- Battery life can last up to 6 to 8 months with new batteries.

Figure 10: Low Power Protection
5.3 Leak Prevention
- Ensure all connections are tight and properly sealed with the provided sealing washers and thread seal tape.
- The brass hose faucet connection and battery cover with a seal ring are designed for enhanced leak protection.
6. Troubleshooting
If you encounter issues with your Diivoo 3 Zone Water Timer, please refer to the following common solutions:
- **Timer not turning on:** Check if the batteries are inserted correctly and are not depleted. Replace with fresh alkaline batteries if necessary.
- **Water not flowing:** Ensure the water source is turned on and has sufficient pressure (0.05-0.8 Mpa). Check that the timer is not in "OFF" mode or "Rain Delay" mode. Verify hose connections are secure.
- **Leaks at connections:** Tighten all connections. Ensure sealing washers and thread seal tape are properly used. Inspect washers for damage and replace if needed.
- **Incorrect watering schedule:** Re-check your programmed start time, duration, and frequency settings for each zone. Ensure the current time on the timer is accurate.
- **Child lock active:** If buttons are unresponsive, check if the child lock is enabled (lock icon on display). Press and hold "ESC" + "-" for 3 seconds to disable it.
For further assistance, please contact Diivoo customer support.
7. User Tips
- **Optimize Watering:** Utilize the independent zone programming to tailor watering schedules to the specific needs of different plants or areas in your garden. For example, a lawn might need frequent, short watering, while a flower bed might need less frequent, deeper watering.
- **Conserve Water:** Make use of the rain delay function during periods of natural rainfall to avoid overwatering and save water. Monitor local weather forecasts to activate this feature proactively.
- **Battery Maintenance:** Regularly check the battery indicator on the LCD display. Replacing batteries before they completely drain ensures uninterrupted operation and prevents the valve from automatically shutting off due to low power.
- **Winterization:** Before freezing temperatures arrive, disconnect the timer from the faucet and hoses, remove the batteries, and store the unit indoors in a dry, frost-free location to prevent damage.
- **Pressure Management:** If using a multi-zone timer, ensure adequate water pressure is available, especially if all zones are set to operate simultaneously. If pressure is an issue, consider staggering watering times for different zones.
8. Warranty and Support
Diivoo is committed to providing high-quality products. For any questions, technical support, or warranty claims, please contact Diivoo customer service through their official channels. Refer to the product packaging or Diivoo's official website for specific contact information and warranty terms.
The product is designed for durability and features IP54 waterproof rating and a robust brass hose faucet connection. Ensure proper installation and maintenance for optimal performance and longevity.





