bids are invited for repair and overhauling service - potable water purification system reverse osmosis or uv based; external water supply, pumping set filteration systems at bhq; yes; buyer premises - providing & replacement of contractor , single phase preventer , meter , volt meter , spare kit without coil , mannet coil , carbon fan control panel repair , i.10 h.p motor rewinding , ii. upper & lower bearing bush , i. impeller , ii.diffuser , starter core repair , per visit charge , labour for control panel repair , i. 7.5 h.p motor rewinding , ii. upper & lower bearing bush , i. impeller , ii.diffuser , i. 7.5 h.p monoblock , ii. upper & lower bearing , iv. cable , v.labour for motor fitting & testing charges , i. repair of shaft d14-l312c-1 , labour for motor fitting ,testing charge