Western Australian Consolidated Regulations Western Australian Consolidated Regulations In these by‑laws
unless the contrary intention appears —
“Act” means the Health Act 1911 ;
“by‑law” means one of these
by‑laws;
" anti‑siphonage vent" or "back vent”
means any vent pipe from an individual trap to the open air, or to a main or
branch vent pipe having for its purpose the prevention of loss of water seal
in the trap;
" bore", "diameter", or
"size", in reference to any pipe means the internal diameter thereof except
for copper;
“building” means any structure used as
a work place, residence, place of business, place of amusement, or a place of
human habitation, or used for the storage of food intended for human
consumption, but does not include out‑buildings unless such are used for
any of the above purposes or are provided with plumbing fixtures;
“combined pipe system” means that type
of plumbing installation in which disconnector traps are omitted and both soil
and waste pipes are connected directly to the drain or to a common pipe taking
both soil and waste discharges, and in which a common system of venting is
used for all classes of pipe;
“combined waste pipe” means any pipe
which receives the discharge from both soil and waste fixtures and conveys the
same to the drain. Combined waste pipes are connected directly to the drain
and are used only in connection with the “combined pipe system”;
“disconnector trap” means a trap for
isolating or disconnecting waste pipes from the drain and soil pipes, and for
providing inlet ventilation to the waste pipe or pipes discharging into it;
“external water closet” means any
closet which is entered solely from an area of not less than nine square feet
open to the sky;
“educt vent” means a pipe designed or
intended to permit the exit of air from a soil pipe, waste pipe, combined
waste pipe or drain;
“fittings” includes all pipes,
cisterns, traps, manholes, ventilators and all other apparatus connected with
any sewer or drain to secure its safe or proper working;
“fixtures” means all apparatus other
than pipes which may be attached to the plumbing or drainage system of any
property for the collection or retention of any wastes or waste waters for
ultimate discharge into the sewerage system, and includes closet pans,
urinals, baths, sinks, basins and troughs connected with such system;
“flat” means a suite of rooms used or
intended or adapted for use as a separate habitation and comprised in a
building containing one or more similar suites;
" interceptor trap", "boundary trap", means a trap
situated on the drain at some point between the sewer and the lowest inlet to
the drain, for the purpose of preventing the passage of air or gases from the
sewer to the drain;
“induct vent” means an opening or
pipe, for the admission of air to a soil pipe, waste pipe, combined waste pipe
or drain;
“internal closet” means any closet
which is entered from or has an opening into any building. Internal closet
means any closet other than an external water closet as herein defined.
“pipe” includes any main, reticulation
or service pipe used for or in connection with sewerage works;
“property” includes house, building,
tenement, land or premises;
“ratepayer” includes a person named in
the books of the local authority as a person liable to pay rates;
“relief vent” means any vent which is
connected below the level of the lowest fixture for the purpose of relieving
the main vent;
“separate pipe system” means that type
of plumbing installation in which separate pipes are provided for soil and
waste discharges and for the ventilation of soil and waste fixtures, and in
which all waste pipes are connected to the drain through a disconnector trap;
“sewage” means faecal matter, urine
and liquid wastes, whether domestic or otherwise;
“soil pipe” means any pipe which
conveys the discharge from water closets, slop hoppers, urinals, mortuaries,
or operating theatres to the drain;
“slop hopper” means any fixture, other
than a closet pan or urinal, used for the discharge of soil or urine waters
and provided with flushing apparatus;
“stack” means any vertical line of
soil, waste, combined waste or vent piping with its offsets if any;
“trade waste” means waste other than
ordinary domestic sewage;
“trap” means any fitting, fixture or
pipe designed to retain a quantity of water for the purpose of preventing the
passage of air or gases through it or to prevent prohibited substances from
entering the sewer or house drain;
“waste pipe” means any pipe which conveys the discharge from any fixture, other than water closets, slop hoppers, urinals, mortuaries, or operating theatres, to a disconnector trap in the case of ``the separate pipe system’’ or directly to the drain in the case of the ``combined pipe system’’;''r>
" water seal", or "trap seal", means the vertical
distance between the dip and the crown weir of a trap, as shown in
sketch —
“works” means any sewerage works
constructed or maintained under the Act and includes surveys incidental
thereto;
“yard gully” means a drainage trap
which is used externally and fitted with a basin top and grating.