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esotec WaterDrops Solar Irrigation Set Manual

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1697-esotec-waterdrops-manual page 1
inuence of the weather, e.g. against too strong rain or direct spraying with
the water hose.
3. Now choose a sunny, shadow-free place for the solar module. The solar
module may be inserted into the ground with the ground spike or screwed-
on with the enclosed holder.
4. Lay the cable for the solar module carefully and without tripping hazards.
Connect the plug of the cable on the solar module with the associated
socket on the control unit (1). The integrated battery is charged in case of
adequately intensive solar radiation onto the solar module.
5. Remove the 2 protective caps from both nozzles for inowing and
outowing water.
6. Cut off approx. 20 centimeters from the (transparent) suction hose (2) and
attach this short piece onto the nozzle for outowing water. (2).
7. In this short piece of hose, please insert the T-reducer with its larger side
(3).
8. On the nozzle for inowing water, please attach the remaining (transparent)
suction hose auf (4). This hose has to be laid up to the reservoir tank for
water, e.g. a rainwater barrel (5).
9. Insert the suction lter (if not already assembled) onto the suction hose
(6). This lter keeps coarse dirt away from the pump. Throw this lter into
the lled water barrel.
Note: Please don´t install the lter on the bottom from the water reservoir. This
prevents the pump from sucking sand grains or similar and losing power.
10. Now take the black oat switch and also put it into the lled water barrel (7).
Now insert the plug of the oat cable into the socket on the control unit (8).
The pump is working if the oat is upright in the water. In case it should lay
on its side due to the lack of water, then the pump will be deactivated and
it is required to rell an adequate amount of water.
11. Cut off approx. 10 centimeters from the (black)
irrigation hose and insert this short piece onto
the free end of the T-reducer (9) which points
upwards. In this short piece, please insert
the (blue) ventilation valve (10). This valve
prevents the uncontrolled running on of the water.
Note: Here, please make sure that the valve is inserted with the right side up!
12. With the remaining piece of the irrigation hose, the
15 hose holders (11), the 15 black T-pieces (12)
and the 15 water drippers (13) you are now able to
install the desired distribution grid for the irrigation.
The dripping volume is xed to 2 l/h.
13. With the multistage selector switch (14) on the housing
you may set the time of operation of the pump. The pump
pumps at the break of dawn and at nightfall depending on
the set value. It may be selected in 6 stages in a range
of 30 seconds (0.5 min) up to a maximum of 12 minutes.
In the position „Test“ it is possible to test the pump or
pump the air out of the hoses when the pump is put into
operation for the rst time.
Operating instructions
Solar irrigation system “Water Drops”
These instructions relate ONLY to this product and contain important infor-
mation for using the product for the first time. Please keep these instructions
for later reference and should always accompany the product in the event of
transference to a new user.
1. Introduction
Dear Costumer, thank you for purchasing the solar pump kit.
With this solar pump kit you purchased a product manufactured according to the
current state of technology.
This product fulfils all requirements of the valid European and nati-
onal regulations. The conformity was proved. The relevant declara-
tions and documentation are deposited with the manufacturer.
To maintain this state and guarantee a safe operation, you as the user will have to
follow this operating manual!
2. Safety Instructions
- In case of damages caused by not following
this operating manual, the warranty rights
will expire! We exclude liability for any
consequential damages!
- We exclude liability for property or
personal damages caused by inappropriate
handling or not following the safety instructions.
- In these cases any guarantee rights will expire.
Due to safety and admission reasons (CE) it is not allowed to arbitrarily reconstruct
and/or change the solar pump kit.
Therefore, please keep to the operating manual.
The accident prevention rules of the association of the industrial trade cooperative
association for electric plants and working material are to be considered in industrial
environments.
3. Function and intended use
The solar irrigation system is intended for outdoor use. With this system it is
possible to irrigate the plants in the garden, in the greenhouse, in the hotbed,
on the balcony or on the raised bed with a maximum of 15 water drippers. The
irrigation is performed once a day at the break of dawn and once at nightfall. The
operating time of the pump may be set between 0.5 minutes and 12 minutes.
The dripping volume is xed to 2 l/h.
Thus, you have the ideal solution for an automatic and network-independent
irrigation of your potted plants or vegetable bed. The integrated diaphragm
pump sucks water from a depth of up to 2 meters e.g. from a rainwater barrel.
The crystalline solar module charges the integrated battery pack during the day
and sunshine.
The means complete independence from the mains current!
4. Scope of delivery
1. 1 x control unit
2. 1 x solar module including
connecting cable and holder
3. 1 x Float switch
4. 2 m suction hose with lter
transparent
5. 5 m pressure hose black
6. 1 x T-piece transparent
7. 15 x T-piece small black
8. 15 x hose holder
9. 15 x water dripper 2 l/h
10. valve
11. seal plug
5. Assembly and putting into operation
1. Please carefully take all parts out of the package. Make sure that you have
really taken all parts out of the package before disposing the package
materials in an environmentally compatible way.
2. Choose an appropriate location for the control unit. In doing so, please pay
attention to the fact that its position has to be higher than the maximum
water level of the water reservoir. Protect the control unit against the direct
!
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bevel
Customer support:
If you have problems or questions regarding this product, simply contact us!
Monday to Friday 9 am to 12 noon and 1 pm to 4 pm.
By phone: +49 9605-92206-0
By e-mail for ordering spare parts: ersatzteil@esotec.de
By e-mail for questions about the product: technik@esotec.de
Product: Manufacturer Item No.: 101100
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Frequently Asked Questions

A

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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A

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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A

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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A

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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A

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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A

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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A

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.
VS

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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