SEPT. 6.]

THE NEW ZEALAND GAZETTE.
2353

the eaves or parapet of the building; and subject to the
same restrictions as to window and chimney openings as in
the case of the soilpipe vent, the back vents from two or
more closet traps may be joined:
Provided that where four or more closet-trap vents are
so joined the combined vent-pipe shall not be less than
3 in. in diameter:
Provided further that any branch soilpipe not exceeding
3 ft. in length which joins the main soilpipe at a higher
level than every other soil or water pipe connection need
not be provided with a back vent.

(k.) Wherever the distance between the trap of a water-closet
basin and the point where the soilpipe begins to extend
upwards to form a vent-pipe is not more than 3 ft., the
back vent of the trap prescribed in the last preceding paragraph
may be omitted, provided that only one sanitary
appliance is connected to such soilpipe.

(l.) The seat of every water-closet basin shall be of such size and
so placed as to prevent the sides of the basin being fouled ;
and shall be effectively fixed and supported.

(m.) No basin of any water-closet shall be so enclosed that the
joints are not easily visible.

Safes below water-closets must be provided where specified.

(n.) Where the Engineer so directs there shall be fixed below
every water-closet basin a safe of 5 lb. lead or other
approved material graded so as to carry any liquids falling
therein to an outlet fitted with a waste-pipe not less than
1½ in. in diameter discharging in the open air, or as the
Engineer may direct, and in order to protect the safe from
injury from the feet of persons using the closet the safe
shall terminate in a roll or slip fitting which shall not
extend beyond the front line of the closet-basin.

(5.) In respect to slop-sinks the following conditions shall be
carried out:-

Position of slop-sinks.

(a.) No slop-sink shall be erected or fixed in any room used as a
dwellingroom or within which any food for human consumption
is prepared or stored, nor in any place directly communicating
with such room.

(b.) Every slop-sink shall be of approved pattern and material.

Flushing of slop-sinks.

(c.) Every slop-sink shall be provided with a flushing-cistern, and
trapped and connected to a soilpipe and ventilated in all
respects as hereinbefore prescribed for the flushing, trapping,
connection, and ventilation of a water-closet basin; provided
that wherever the soilpipe of a water-closet is available
the slop-sink may be connected to such soilpipe in
the same manner as prescribed for a branch water-closet
connection.

Safes below slop-sinks must be provided in certain cases.

(e.) Wherever a slop-sink is placed in a room the floor of which
is of wood, and in any other case in which the Engineer
so directs, there shall be fitted below such slop-sink a safe
or tray of approved impervious material so finished and
graded as to prevent the escape of any fluid therefrom
save by a waste-pipe not less than 1½ in. in diameter of lead
or galvanized wrought iron discharging in the open air in
a conspicuous position.

(6.) In respect to urinals the following conditions shall be carried
out:-

Position of urinals.

(a.) A urinal shall not be erected in any room used as a dwelling-
room or in which food for human consumption is prepared
or stored, nor in any place directly communicating with
such room; and every place used as a urinal shall be
lighted and ventilated in an approved manner.

(b.) Every urinal erected or fixed in an hotel, club, or restaurant,
and every urinal wholly open to the public, shall be of a
type known as the "stall type."

(c.) The floor of every room used as a urinal shall be of tiles set
in cement or of Portland cement, slate, marble, or sheet
lead, or other approved impervious material, sloped and