The Naiade system will be ...
Published by Francois Van Wyk, Water Quality Specialist at Rand Water
The Naiade system will be ideal. Manufactured in Holland and South Africa. Runs of a car battery and one unit can treat 1000 liters per day. See info here http://akvopedia.org/wiki/Naiade_water_purification_unit
or contact me on fvwyk@randwater.co.za
Regards
francois