WPE55 Pipe Collar for Nani Trap (Drainage System) is developed to arrest the water leakage / seepage through the inside portion of the bedding material above the Nani Trap. After placing the Nani trap on the floor, the bedding material (Machan) is casted to maintain the slope, but the inside portion of the bedding material, i.e the inside portion between nani trap and bedding is NEVER waterproofed, this is source of leakage/seepage. Our WPE55 Pipe Collar completely seals/Covers this gap and allows to flow into the Nani Trap. To fix the WPE55 Pipe collar use Synthetic rubber Glue at the BOTTOM of the flange. Again apply Synthetic rubber glue on TOP of the flange and sprinkle sand to make it compatible with any cementitious surface, and then fix the tiles around the WPE55 Pipe Collar.