Best method is Multigrade ...
Published by S P Singh, SR> ENGINEER at VATECH WABAG LIMITED
Best method is Multigrade sand filter, it may be Horizontal pressure sand filter or gravity sand filter.
Regards
Shivendra
shivendra280@yahoo.co.in
Published by S P Singh, SR> ENGINEER at VATECH WABAG LIMITED
Best method is Multigrade sand filter, it may be Horizontal pressure sand filter or gravity sand filter.
Regards
Shivendra
shivendra280@yahoo.co.in