supplying and laying pipes for grey water management under p ii gp- 1 (p-74, i-24)labour for fitting and fixing u.p.v.c. pipes for above ground work including cost of jointing materials etc. fitting and fixing all necessary specials, cutting pipes, cutting holes in walls or r.c. floor wherenecessary and mending good all damages excluding the cost of masonry or concrete work, if necessary, but including the cost and fitting and fixing holder bat clamps (any floor) or for underground work including cutting trenches upto 1.5 metre and refilling the same complete as per direction of the engineerin-charge.(payment will be made on centre line measurement ofthe total pipeline including specials.(b) under ground,(i) 75 mm dia 2 (p-68, i-23) supply of upvc pipes (b type) & fittings conforming to is-13592-1992(a) (i) single socketed 3 meter length, (a) 75 mm 3 (p-68, i-23) (i) fittings, coupler(a) 75 mm 4 (p-68, i-23) (ii) plain tee (a) 75 mm 5 (p-68, i-23) (iii) plain y(a) 75 mm 6 (p-68, i-23) (iv) double y(a) 75 mm 7 (p-68, i-23) (v) bend 45º(a) 75 mm 8 (p-68, i-23) (v) bend 87.5º(a) 75 mm 9 supplying and fitting 75 mm dia nahani trap. (lmr) 10 construction of collection chember with brick work / pcc at each sources oftubewell (l.s.)