3312
THE NEW ZEALAND GAZETTE.
[No. 81

connection as a ventilation-pipe to a point at least 3 ft. above the eaves of the building, undiminished in size.

The extension shall be made of the materials, jointed and fixed as specified for drain ventilating-pipes, and shall be subject to the same requirements regarding the position of the outlet.

VENTILATION OF CLOSET TRAPS.

49. For single closets on a stack of soil-pipe the trap shall be ventilated, at the option of the Sanitary Inspector, by an airtight pipe of not less than 2 in. diameter, made of the materials and jointed as set forth in the specification hereto. This ventilation-pipe shall be carried upwards to a point 3 ft. above the eaves of the building, or connected to the soil-pipe ventilator at a distance of 3 ft. above the closet branch.

When two or more closets are connected to the same soil-pipe, vent-pipes shall be taken from their traps.

If the number of closets does not exceed four, the branch vent-pipes shall be connected to a main vent-pipe 2 in. in diameter; when the number of closets exceeds four, the branch vent-pipes from the traps shall be connected to a main vent-pipe 3 in. in diameter. The main vent-pipes shall be carried upwards to a point 3 ft. above the eaves of the building, or be connected to the soil-pipe ventilator 3 ft. above the highest branch soil-pipe.

For closets erected in detached buildings trap ventilation will only be required if no drain-ventilator is situated within 6 ft. of the closet-connection with the drain. Such vent-pipes shall be carried upwards and terminate 2 ft. above the ridge of the roof, or in such positions as the Sanitary Inspector directs. Trap vent-pipes shall be carried upwards as direct as possible, without avoidable bend, and shall be securely fixed and made of the materials, and jointed as set forth in the specifications hereto. The outlet of soil and trap vent-pipes shall be provided with a galvanized wire guard or approved cowl.

The connection between the trap ventilation-pipe and the vent-horn on the closet shall be made as set forth in the specifications hereto.

CONNECTION OF WATER-CLOSETS WITH SOIL-PIPES.

50. All water-closets shall be connected with the soil-pipe when of cast iron by means of a lead branch into a cast-iron Y junction. The joint between the lead branch and cast-iron junction shall be made by wiping a brass ferrule on the branch pipe and caulking the same with spun-yarn and molten lead. The joint between the earthenware basin and the lead branch shall be made as follows: A cast brass or lead socket shall be wiped on to the lead branch to receive the end of the closet basin, the joint being made with spun yarn and bitumen, painted with Brunswick black.

When the soil-pipe is of lead, branch pipes shall be connected by wiped branch joints.

CONNECTION OF W.C.S WITH DRAINS.

51. Water-closets connecting direct with drains shall be jointed above the floor-line of the closet apartment into the drainpipe-socket with a joint made of spunyarn and bitumen, painted with a thick coat of Brunswick black.

EXISTING WATER-CLOSETS TO COMPLY WITH REQUIREMENTS OF BY-LAW.

52. In every case in which there shall be on any premises a water-closet which shall have been erected contrary to the provisions of any by-law in force at the time of such erection, or which in the opinion of the Sanitary Inspector is insanitary or insufficient, it shall be lawful for the Sanitary Inspector to serve a written notice upon the owner of such premises, or upon the occupier, as he (the Sanitary Inspector) shall think fit, calling upon the person or persons served either to cause such water-closet to conform in every respect with the provision of this part of this by-law, and to have connected therewith all the appliances required by this part of this by-law, within one calendar month from the time of such service, or within the same time to completely disconnect and remove the basin, soil, flush-pipe, and other appliances and fittings of such water-closet, and all drains and parts of drains used exclusively in connection with such closet. If any notice is not complied with, every person therewith as aforesaid shall be deemed guilty of an offence.

POSITION OF SANITARY FITTINGS.

52A. All sanitary fittings shall be placed wherever possible against external walls, and adequate light and ventilation to the satisfaction of the Sanitary Inspector shall be provided to the rooms in which they are fixed.

WASTE-PIPES.

53. Waste-pipes from baths, lavatories, sinks, wash-tubs, or other fittings shall be separately trapped directly under-

neath the fitting with approved drawn-lead traps having a seal of not less than 2 in., and provided with cleansing-screw, which shall be securely attached to the trap with a wiped solder joint. Such traps shall be of similar size as the waste-pipes to which they are connected, except in cases when they are likely to be unsealed by momentum; then, to prevent this action, the trap shall be of a size larger than the waste-pipe, or shall have a flat crown outgo. When wash-tubs or other fittings are situated in detached outhouses and the waste-pipes therefrom do not exceed 6 ft. in length, such waste-pipes need not be trapped. Waste-pipes shall discharge over trapped drain inlets, and shall so terminate as to cause a minimum amount of splashing. Waste-pipes from sinks in such premises as hotels, restaurants, boardinghouses, butchers’ shops, or other premises which in the opinion of the Sanitary Inspector it is necessary so to treat, shall discharge into suitable approved grease-traps, which shall in all cases be situated outside the premises and placed to be easy of access. Waste-pipes shall have an approved fall, and shall, as far as possible, be run externally. They shall be properly supported and securely fixed. Where, in the opinion of the Sanitary Inspector, cleaning-screws are necessary, these shall be inserted as directed. All waste-pipes and traps shall, wherever practicable, be exposed to view for ready inspection and for convenience in repairing, and whenever placed within walls or otherwise not exposed to view they shall be enclosed with wood casings fastened with brass screws, to permit of easy removal.

VENTILATION OF WASTE-PIPES.

55. When a main waste receives the discharge from two or more branch wastes situated on different floors, such main waste-pipe shall be carried upwards, undiminished in size, to a point 2 ft. above the eaves of the building. Branch waste-pipes connecting with such main waste-pipe shall be ventilated near the trap by a pipe of a size in accordance with the specification hereto. Such vent-pipes shall be carried upwards to a point 2 ft. above the eaves of the building, or connected with the main waste-pipe at a point not less than 3 ft. above the highest branch waste.

Single waste-pipes which do not exceed 12 ft. in length need not be ventilated.

Single waste-pipes exceeding 12 ft. in length, or a waste-pipe from a lavatory-basin combined with a bath waste, shall, at the option of the Sanitary Inspector, be ventilated by a pipe carried 2 ft. above the eaves of the building, or by a pipe taken through an external wall and finished with a knuckle bend and grating. These vent-pipes must be taken off the waste-pipe as near the trap as possible. Vent-pipes terminating above the roof shall be provided with a galvanized-wire guard or approved cowl.

Waste-pipe vents shall be carried in as direct a manner as possible, and, if necessary, through the eaves of the roof. Vents passing through a roof shall be properly flashed.

Branch vent-pipes shall have a distinct rise from the waste-pipe trap to their outlet, and shall be connected with a bend in the direction of the flow.

Waste-pipe vents shall be of the materials and jointed and fixed as set forth in the specifications hereto.

OVERFLOW-PIPES.

56. Overflows from baths shall be connected to the waste-pipe trap on the fitting side at a point above the level of the water-seal, or shall be carried through an external wall and discharged into the open air, the end of the overflow to be provided with a hinged metal flap to prevent draught through the pipe.

Overflows from sinks and lavatories shall be connected with the waste-pipe trap on the fitting side at a point above the level of the water-seal.

Overflows shall be of lead or galvanized wrought-iron piping of the strengths and sizes set forth in specifications hereto, and shall be properly supported and fixed.

BATH SAFES AND WASTES.

57. When safes are laid in bath-rooms, a waste-pipe shall be provided therefrom, which shall be fixed as specified for water-closet safes.

WASTES FROM SLOP SINKS AND HOPPERS.

58. Waste-pipes from slop sinks and hoppers shall be constructed of similar materials and treated in like manner as specified for soil-pipes, provided that when a slop sink or hopper is fixed contiguous to a water-closet the soil and ventilation pipes provided for the latter may be utilized for the former. Draining-boards and tops fitted to slop-sinks shall be covered with 4 lb. sheet lead or other suitable material, properly secured thereto, and having a stand-up at least 2 in. high against the wall or walls.