bids are invited for annual repair and maintenance of sewerage treatment plant 50 kld panel repair including removing all defective parts and providing and installation of new parts will all required wiring and connection components. , providing and fixing of multi port valve with new multi port valve and all charges. , monoblock 1 hp pump bearing and rewinding etc. , 15 hp monoblock pump motor repair and rewinding, bearing mechanical seal or gland wire impeller repair replacement. , cleaning of sewerage treatment plant all tanks with removing solid waste out from the tank. , providing and fixing of ss nut bolt at existing site including removing old defective gi nut bolt with new ss nut bolt. , 1 hp monoblock pump motor repair and rewinding etc. , providing and fixing of pressure gaugemeter at existing site including removing old defective pressure gauge meter with new pressure gauge meterand all charges. , painting of activated carbon filter acf tank. , painting of multi grade filter mgf tank. total quantity : 31