esotec WaterDrops Solar Irrigation Set Manual
PDF manual · 2 Pages
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Frequently Asked Questions
The system uses a crystalline solar module to charge an integrated 3.6 V NiMH battery pack. Solar energy during the day charges the battery, which powers the diaphragm pump for automatic dawn and dusk irrigation cycles.
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The kit supports up to 15 water drippers, each delivering a fixed 2 liters per hour. This delivers gentle, consistent watering but cannot be adjusted per dripper without modifying the setup.
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The diaphragm pump can suck water from depths up to 2 meters. The control unit must be placed higher than the reservoir’s maximum water level and protected from direct heavy rain or hose spray.
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Regularly clean the suction filter and wipe the solar module. Replace the battery every two years, avoid installing the filter on the reservoir bottom, protect the solar panel from tipping, and dismantle the system before frost to prevent damage.
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Green steady = pump running; green flashing = battery charging while pump off; red flashing = not enough water in the reservoir; dark = battery empty or defective. Use these indicators to diagnose operation and water level issues.
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Yes. Turn the rotary switch to Test to run the pump for initial priming or to expel air from hoses. Ensure the battery has sufficient charge and the suction filter is below the water surface when testing.
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Replace with an identical NiMH battery pack: 3.6 V and at least 1200 mAh. The manufacturer’s spare part reference is provided; always dispose of used batteries following local regulations.
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Advantages and Disadvantages
Advantages
- Solar-powered with integrated battery enables network-independent irrigation.
- Supports up to 15 drippers with a fixed 2 l/h drip rate for consistent water delivery.
- Simple assembly using supplied hoses, T-pieces, holders and a filter; Test mode for priming.
- Float switch protects pump from dry running; LEDs show pump, charging and low-water status.
- Compact, low-maintenance design ideal for gardens, balconies and greenhouses.
Disadvantages
- Battery requires replacement at least every two years and must be disposed of properly.
- Performance depends on sufficient sunlight; shaded sites reduce charging and operation.
- System must be dismantled and stored indoors to avoid frost damage in winter.
- Drip rate is fixed (2 l/h) with limited flexibility for different plant needs without modification.
- Maximum lift 2 meters and max 15 drippers may limit larger or more complex irrigation setups.
Product Description
esotec WaterDrops Solar Irrigation Set — Efficient, off-grid watering solution
The esotec WaterDrops Solar Irrigation Set is a compact, solar-powered irrigation kit designed to automate watering for gardens, balconies, raised beds and greenhouses. Powered by a crystalline solar module and an integrated NiMH battery pack, the system draws water from a reservoir (e.g., rain barrel) and delivers precisely metered drips to up to 15 plants. The diaphragm pump lifts water from depths up to 2 meters, while the simple hose-and-dripper layout makes installation and customization easy.
Installation is straightforward: place the control unit above the water level, position the solar panel in a sunny, shadow-free spot and route its cable to the controller. Attach suction and irrigation hoses, fit the included filter and float switch into the reservoir, and assemble the distribution network using supplied T-pieces, hose holders and 15 drippers (2 l/h each). A small T-reducer and ventilation valve prevent uncontrolled flow; the selector switch offers a Test mode and six runtime settings from 0.5 to 12 minutes. In normal operation the pump runs twice daily — at dawn and dusk — providing automatic, network-independent irrigation.
Built to be user-friendly, the kit includes a control unit with LED indicators for pump operation, charging and water-level warnings. The battery is replaceable (3.6 V NiMH, ≥1200 mAh), and spare parts are available through the manufacturer. With IP44 protection and explicit care guidance — such as cleaning the solar module and washing the suction filter — the system is designed for reliable seasonal use; however, users must remove and store it in frost-prone months to avoid damage.
This solution is ideal for gardeners seeking low-maintenance, sustainable irrigation using harvested water. It reduces reliance on mains electricity, conserves water through scheduled low-flow dripping (2 l/h per dripper) and simplifies distribution with pre-sized components. Safety notes stress correct assembly, battery handling, and child protection from small parts.
Notes:
- The pump’s dripping rate is fixed at 2 l/h per dripper; maximum 15 drippers.
- The solar module charges the battery; adequate sun exposure is required for reliable operation.
- Replace the battery at least every two years and dispose of used batteries properly.
- Do not install the suction filter directly on the reservoir bottom to avoid sand ingestion.
- Protect the system from frost by dismantling and storing indoors during winter.
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