Cleaning of Open Walls, Drainage, Water Supply Mains, Terraces and Uprooting of Trees from Pipe Line. (1) Desilting / Cleaning of open wells shall be done once in a year when the water level reached lowest level in a dry season.
(2) Drainage system (external) shall be flushed / cleaned using profuse water under pressure once in 3 years to avoid blockages and a run of Bleaching Power solution be given.
(3) Water supply ring mains may also be flushed once in 3 years to remove the lush / scales in the pipes, wherever possible.
(4) Terraces, Sunshades, storms water drains, mouth of rain water pipe on terraces weep holes in the compound wall, etc. shall be cleaned well before the onset of monsoon to obviate blockage to free flow of rain water.
(5) The trees grown on pipe lines and different places at the outside of the building may be uprooted by calling quotations. After uprooting, the places may be cleaned and then appropriate amount of coal tar may be used so that the growth of the trees can be stopped in future.