maintenance of water treatment plant under dhanyakuria gram panchayat, block basirhat-ii, north 24 parganas. , repair of water treatment plant , supply fitting and fixing submersible pump with motor having capacity 1hp, (cromptopm) including supply fitting and fixing casing pipe and electrical wire , repairing of burned submersible pump including lowering and fitting and fixing complete , supply fitting and fixing open-well submersible motor pump starter 240v ac (1hp , ptmt (polytetra bib cock / stop cock ( prayag or equivalent) 15 mm , supplying, fitting and fixing alloy iron with brass spindle bib cock/ stop cock of approved brand and make, spray painted and tested to 21 kg per sq. cm. , supplying, fitting and fixing pvc pipes of approved make of schedule 80 (medium duty) conforming to astmd - 178515mm dia , back washing and cleaning of filter media all vessel , cleaning and removing mud upto 2000 litre water tank including masonry reservoir. , manganese oxide filling (25kg bag) , activated carbon (charcoal) (25kg bag) , activated alumina (25kg bag) , repairing chocked up tube well by cleaning and washing with chemical including pumping with powerful pump. , supplying, fitting and fixing gunmetal wheel valve of approved brand and make tested to 21 kg per sq. cm. (for water lines only). 15mm dia