repair servicing and annual maintenance contract for one year of 20 kld stp installed at govt . dental hospital jammu , repair to 20kld stp by way of dismantling the old/damaged filters and providing and fitting of new sand and gravel fitter dia 600 mm height 1800mm- 01 no . , acf fitter dia 600 mm height 1800mm- 01 no . , upvc pipes , valves and fittings-01 lot , job also includes white washing and painting to machinery of plant room . complete job includes cost of material , labour charges and all kinds of taxes there of . , camc of 20 kld stp plant for one year after repairs by way of p/f of sludge pump-2 hp 01 no . , transfer pump 01 hp- 01 no . , filter pump- 01 hp- 01 no . one time service charges of stp including cost of activated carbon , sand replacement . complete job includes cost of material , labour charges and all kinds of taxes there of . one visit of service engineer monthly are as required for smooth functioning of the plant .