I have used clean river sand ...
Published by Rajendrakumar Saraf
I have used clean river sand and charcoal & earthen pot & few drops of liquid chlorine. Storage of Water is copper vessel is also tried.
Rajendrakumar V Saraf, FIE, FIWWA, Chairman
Viraj Envirozing India Pvt. Ltd
21, Radhakrishna, Near SBI, Paud Road, Pune 41038
Tel 02015433445, 9822186763
www.virajenvirozing.com