Range of WATA devices
We offer three different models of WATA devices: Mini-WATA, WATA-Standard and Maxi-WATA
Mini-WATA KIT: drinking water for 1,000 people
Capacity : 167 ml of active chlorine concentrate per hour (min. 3h of operation). The Mini-WATA can treat up to 4,000 litres of water per day, covering the daily needs for clean drinking water of 1 000 people*.
- Mini-WATA size: 17 cm
- Weight of the kit: 350 g
- Power supply provided: 5V / 1A (for electricity network 110V or 220V)
- Solar power supply (optional): 5V converter and crocodile clips provided, which enables its direct coupling with a photovoltaic panel (panel from 6V to 18V, min 10-watt not provided).
Content of a Mini-WATA kit:
- 1 x Mini-WATA device
- 1 x power supply 5V/1A
- 2 x syringes (50ml et 5ml)
Price of a Mini-WATA Kit: 150 CHF/ with solar option: 200 CHF, excluding shipping charges**
WATA-Standard KIT: drinking water for 6,000 people
Capacity: 1 litre of active chlorine concentrate per hour. The WATA-Standard can treat up to 24,000 litres of water per day, covering the daily needs for clean drinking water of 6,000 people*.
- WATA-Standard device size and weight: 18 x 5.5 x 4.5 cm / 0.200 kg
- WATA-Standard full kit size and weight: 26 x 11 x 11 cm / 1.100 kg
- Power supply provided: transformer 12V / 5A and pair of crocodile clips for an use with solar power supply of min 50W (solar panel not provided).
Solar power: WATA-Standard can be coupled with a photovoltaic panel of minimum 50 watts. Under this configuration, it must be connected to a charge regulator, itself connected to a car battery. In that case, it is important to recharge it after every 9 hours of functioning (for a 75 Ah battery) and not to let it unload beyond 50% of its total capacity (voltage under 11.5 V). You must get a voltmeter in order to check that the charged battery delivers minimum 13 volts. Make sure that the battery is connected to the WATA when measuring its voltage with the voltmeter.
The intensity (amperes) of the electric current provided for the electrolysis with WATA-Standard has to be as constant as possible, in order to guarantee a concentration of 6 g/L of active chlorine in the solution produced. Photovoltaic cells can hardly deliver such a constant current intensity. It is therefore necessary to make use of a battery simultaneously to using a solar power (as shown in the user guide). This way, the current intensity’s variations are buffered and passing clouds, for example, thus do not reduce the device’s production rate.
Content of standard WATA-Standard kit:
- 1 x standard WATA-Standard device
- 1 x power supply 12V/5A, (Meanwell LPF-60-12)
- 1 x paire of crocodile clips
- 1 x container of 2.5 litre
- 2 x syringes (50ml et 5ml)
Price of a WATA-Standard Kit: 380 CHF, excluding shipping charges**
Maxi-WATA KIT: drinking water for 125,000 people
Capacity: 12,5 litres of active chlorine concentrate per hour. The Maxi-WATA can treat up to 500,000 litres of water per day, covering the daily needs of 125,000 people* for clean drinking water.
- Maxi-WATA size and weight: 45 x 15 x 10 cm / 3 kg
- Power supply size and weight: 38 x 19 x 13 cm / 4 kg
- Maxi-WATA full kit weight: 7.500 kg
- Power consumption: 720W or 24VDC X 30A
- Power supply provided: Transformer rated at 960W, delivering an output voltage of 24VDC. All you need to do is connect the transformer to the electricity network (120V-230V) or to a generator. For safety reasons, both options have to be earthed.
Using Maxi-WATA requires more attention than the two smaller models (see user guide). Only especially-trained people should use it. In particular, the strong hydrogen emissions produced during the electrolysis mean that no flame or spark should, in no case, be brought close to a functioning device. Moreover, you should not inhale the chlorine emanations produced during electrolysis, and you should work in a well-ventilated room. Finally, safety precautions must be taken (restricted access to the devices) in order to avoid any risk of electrocution.
Content of the Maxi-WATA kit:
- 1 x Maxi-WATA device
- 1 x power supply 24V/40A (Meanwell 960W) in a ventilated box
- 2 x syringes (50ml and 5ml)
→ Price of a Maxi-WATA kit: 4,340 CHF, excluding shipping charges**
WataTest reagent kit: Quality control check for concentrated chlorine
Content of the Watatest reagent kit:
- 1 x flask of 50ml of WataTest (~60 to 70 tests)
- 1 x plastic pipette (3ml)
- 1 x syringue (1ml)
- 1 x WataTest user guide
Price: 15 CHF, excluding shipping charges**. Each kit of the line WATA is provided with un WataTest control kit.
WataBlue reagent kit: Free residual chlorine measurement check
Content of WataBlue kit:
- 1 x flask of 14ml of WataBlue (~250 tests, one drop is one test)
- 1 x plastic pipette (3ml)
- 1 x test tube(1ml)
- 1 x WataBlue user guide
Price: 7.50 CHF, excluding shipping charges. Each kit of the line WATA is provided with un WataBlue control kit.
Guarantee, price list and order form
All three models are guaranteed for one year. In practice, when used properly and cleaned regularly, their operational life span will be considerably longer.
WATA standard kit
WataTest reagent kit
WataBlue reagent kit
for 60 to 70 tests
for 250 tests
The WATA, a simple solution to treat water. Testimonies of the SDC, Solidarités International, ICRC, Bloemwater and Action Against Hunger.
All the WATA devices are registered designs. The production capacity shown here may differ from reported capacity in project descriptions elsewhere in the website.
*with average quality water and according to the standards of 4 litres per person per day; final concentration in residual chlorine of minimum 0.5 to 1 mg/l.
** Prices in Euros are provided upon request. Order form available here.