tender for charges for de-watering of clarifier, mixing the mud / fine sludge deposits with water while de-watering in clarifier of size 18 m radius x 6.5 m depth. , charges for removing sludge and other foreign particles from the clarifier of size 18 m x 6.5 m depth. , charges for cleaning the algae deposits on the side walls of both inner and outer rings of clarifier and bottom surface with coir/wire brush. applying and cleaning with bleaching powder on both side walls of inner ring & outer rings and also at bottom surface in clarifier of size 18 m x 6.5m depth , charges for de-watering of sludge disposal pit, removal of sludge from sludge disposal pit, and also tunnel pipes from clarifier to sludge pit. cleaning of algae deposits with coir / wire brush, and applying & cleaning with bleaching powder on inside walls of sludge pit, flash mixing chamber. , charges for removing the rust and old paint from the structure immersed in the water of clarifier and above the water level exposed to atmosphere , inlet and outlet valves exposed to atmosphere of clarifier-ii. , charges for painting with one coat of rust convertor (impodex / impodor), one coat of epoxy red oxide primer and one coat of epoxy coal thar black paint one over the other with proper intervals for clarifier structures immersed in the water and above the water level exposed to atmosphere and structure frame inside flash mixing chamber, inlet and out let valves of clarifier- ii. , cost of rust convertor for sl.no.5 , cost of epoxy red oxide primer for sl.no.6 , cost of coal thar black paint for sl.no.6 , cost epoxy thinner for sl.no.6 , cost of stable bleaching powder for sl.no.3&4 , cost of consumable and t&p for sl.no.1 to 6