Providing and placing in horizontal layers filtering media screened, washed and cleaned as described below:- Bottom Layer :—– Broken stone, screened, cleaned and washed and graded from 50mm to 75mm (from Pathankot or approved equivalent quarry).
Providing and placing in horizontal layers filtering media screened, washed and cleaned as described below:- Bottom Layer :—– Broken stone, screened, cleaned and washed and graded from 50mm to 75mm (from Pathankot or approved equivalent quarry).