Tender For Providing And Placing In Horizontal Layers Filtering Media Screened Washed And Cleaned As Describ ... in India

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Tender for Providing And Placing In Horizontal Layers Filtering Media Screened Washed And Cleaned As Described Below 20.52.1 Top Layer: Fine Sand Screened, Cleaned And Washed And Graded (Effective Size 0.2 To 0.4 Mm With Uniformity Coefficient 2.0 To 3.0) From Ghaggar Or Other Approved Source , 20.52.2 Second Layer Coursed Sand Screened, Cleaned And Washed And Graded From 3 Mm To 6 Mm (From Ghaggar Or Approved Equivalent Quarry) , 20.52.3 Third Layer Bajri (Coursed) Screened And Washed Graded From 20 Mm To 25 Mm (From Ghaggar Or Approved Equivalent Quarry) , 20.52.4 Fourth Layer Bajri (Coursed) Screened And Washed Graded From 20 Mm To 25 Mm (From Ghaggar Or Approved Equivalent Quarry) , 20.52.5 Bottom Layer Broken Stone, Screened, Washed And Graded From 50 Mm To 75 Mm (From Ghaggar Or Approved Equivalent Quarry) , 20.77 Taking Out Filter Media Top Layer And Replacing The Same After Screened, Washed & Cleaned , 20.78 Providing And Fixing Bed Plates Complete In All Respect , 20.79 Taking Out Filter Media 2N D Layer And Replacing The Same After Screened, Washed & Cleaned , 20.80 Taking Out Filter Media 3R D Layer And Replacing The Same After Screened, Washed & Cleaned , 20.81 Taking Out Filter Media 4T H Layer And Replacing The Same After Screened, Washed & Cleaned , 20.82 Taking Out Filter Media Bottom And Other Layers And Replacing The Same After Screened, Washed & Cleaned , 20.83 Taking Out Bed Plates From Filter Beds And Replacing Same After Washing.

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