Construction a leakage-free masonry tank of 50 cubic meter reinforced with beams and columns Construction a splash a prone ring using 150mm masonry brick wall 1:4 cement mortar and 6m long drainage Construction of a sand filter at the end of the drainage as recommended by the Engineer in the Drawings Fixed a water tight man hole on the tank Installed a complete rope pump Prepared, primed and painted one undercoat and 2 subsequent coats of the bituminous paint on the external part of the wall before backfilling and after the wall had dried thoroughly as tanking to the underground wall.
Backfilled the remaining gaps up to the level that was indicated in the drawings. Installed an aluminium ladder approved by engineer Installed a 4”UPVC heavy duty pipe from sand filter collection point to the tank with gentle slope that allowed free flow. Installed gutters and downpipes to the sand filter collection manhole and first flush diverter pipe. Finished the slab as recommended by the engineer.