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- Dependent to solar energy, although battery system is standard
- Imported product; with possibility of local production based on annual turnover
==History and social context==
The unit does not contain any moving parts except for the electro-magnetic tap.
It is made of tropical resistant poly ethylene. All material as well as the applied technology is based on the intensive use in remote and tropical areas. The device was laboratory test from Unesco-IHE, Institute for Water Education. Field tests were done by the Water Research Institute of the Council for Scientific and Industrial Research, Ghana and ATIRA-Ahmedabad, India.Amongst others, received two prestigious international awards on sustainable development.
====Estimated Lifespan====
The estimated lifespan of the unit is over 10 years. Filter bags and UV lamps may need earlier replacement.
The UV lamp has a life of 10.000hrs or 3 years at 9 h/day continuous service. The filter needs to be replaced approximately every 12 months depending on TSS of influent/washing frequency. The back up battery (12V-50Ah) lasts 36 hours. Built-in electronics will register the used time of lamp and a light in front of the unit will indicate when the lamp needs to be replaced.
==Cost==