Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements Section 09: Building Works  9.2.14 Main cold water supply pipe  22 of 24 The Contractor shall furnish and install the main water supply pipe from the nearest source.  The main shall be buried with a minimum cover of about 1000 mm.  Approved water closets, bowls, urinals, washbasins and showers shall be delivered and installed ac- cording to the following herewith Employer’s Requirements.  The WC pan shall be manufactured of vitreous china and shall be of the flush down type and in white  colour. The pan shall have flushing rim to wash to entire internal surface of the bowl without splashing  and shall be of the floor mounted type. Floor fixing screws shall be of non-ferrous material. The seat  and cover shall be manufactured of black coloured plastic, unless otherwise ordered by the Engineer.  The seats shall be flat on the underside and provided with four rubber or plastic buffers to rest on the  WC pan rim. The cover and seat shall be fixed directly to the WC pan with copper hinges and com- pressible protective washers on both sides of the ceramic lugs. The flushing cistern shall be of low  level type, connected to the WC pan by a PVC flushing pipe. The cistern shall be manufactured of vit- reous china and shall be of the valveless siphon type of 9 litres capacity. The cistern shall be provided  with a suitable ball valve, operating handle direct mounted, water supply connection and overflow  pipe discharging indirectly to a suitable conspicuous outlet. The flush pipe shall be of 32 mm bore.  The fill fittings shall be of the quiet type and the flush pipe shall ensure the discharge of the total con- tents of the cistern.  9.2.15 Plumbing fixtures  9.2.15.1 European Water Closet  All WC pans shall be provided with a toilet roll holder.  9.2.15.2 Squatting Water Closet  9.2.15.3 Bowl Urinals  The squatting WC shall consist of the pan, high level flush cistern, flush pipe, flush chain and handle  and all other necessary accessories. The WC pan shall be manufactured of vitreous china and consist  of a floor level bowl with a squatting plate which is provided with raised foot treads. The plate forms  and impervious surround and shall be formed in one piece with the bowl. The bowl shall be provided  with a back flush inlet and may be supplied with or without an integral. The flushing cistern shall be  provided with a ball valve, siphon flush fittings and an overflow pipe discharging indirectly to a con- spicuous outlet. The flush pipe shall be of PVC or painted galvanised steel with a diameter of 32 mm.  The cistern shall have a capacity of 9 litres. All units shall be in white colour.  The urinals shall be wall hung urinals provided with an extended lip and a spreader for flushing water  to the whole internal surface of the bowl. The urinals shall be of vitreous china complete with outlet  grids.  All urinals shall be provided with flushing. A single unit shall be provided with a manually operated  flushing cistern. When the urinals are installed in ranges, they shall be provided with an automatic  flushing cistern and dividing panels. The cistern shall discharge its contents automatically by siphon- age, at intervals determined by the rate of water input to it. The capacity shall be 4.5 litres of water per  standing space while the water supply shall be provided with a regulating cock and stop valve.  9_Vol3_d4.3_Section 9 building works_en_GIR_rev6.docx 