London's Pulse: Medical Officer of Health reports 1848-1972

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London County Council 1893

[Report of the Medical Officer of Health for London County Council]

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6
He shall furnish such watercloset with a suitable apparatus for the effectual application
of water to any pan, basin, or other receptacle with which such apparatus may be
connected and used, and for the effectual flushing and cleansing of such pan, basin, or
other receptacle, and for the prompt and effectual removal therefrom and from the trap
connected therewith of any solid or liquid filth which may from time to time be deposited
therein.
He shall furnish such watercloset with a pan, basin, or other suitable receptacle
of non-absorbent material, and of such shape, of such capacity, and of such mode of construction
as to receive and contain a sufficient quantity of water, and to allow all filth
which may from time to time be deposited in such pan, basin, or receptacle, to fall free
of the sides thereof and directly into the water received and contained in such pan, basin,
or receptacle.
He shall not construct or fix under such pan, basin, or receptacle, any "container
" or other similar fitting.
He shall construct or fix immediately beneath or in connection with such pan,
basin, or other suitable receptacle, an efficient siphon trap, so constructed that it shall at
all times maintain a sufficient water seal between such pan, basin, or other suitable
receptacle and any drain or soil pipe in connection therewith. He shall not construct or
fix in or in connection with the watercloset apparatus any D trap or other similar trap.
If he shall construct any watercloset or shall fix or fit any trap to any existing
watercloset or in connection with a soil pipe, which is itself in connection with any other
watercloset, he shall cause the trap of every such watercloset to be ventilated into the open
air at a point as high as the top of the soil pipe, or into the soil pipe at a point above the
highest watercloset connected with such soil pipe, and so that such ventilating pipe shall
have in all parts an internal diameter of not less than two inches, and shall be connected
with the arm of the soil pipe at a point not less than three and not more than twelve inches
from the highest part of the trap and on that side of the water seal which is nearest to
the soil pipe.
Soil pipes.
4. Any person who shall provide a soil pipe in connection with a building to be
hereafter erected, shall cause such soil pipe to be situated outside such building, and any
person who shall provide or construct or refit a soil pipe in connection with an existing
building, shall, whenever practicable, cause such soil pipe to be situated outside such
building, and in all cases where such soil pipe shall be situated within any building, shall
construct such soil pipe in drawn lead, or of heavy cast iron jointed with molten lead
and Drotterlv caulked.

He shall construct such soil pipe so that its weight in proportion to its length and internal diameter, shall be as follows—

Diameter.Lead.Iron.
Weight per 10 feet length. Not less thanWeight per 6 feet length. Not less than
3½ inches65 lbs.48 lbs.
4 „74 ,,64 „
5 ..92 „69 „
6 „110 „84 „

Every person who shall provide a soil pipe outside or inside a building shall cause
such soil pipe to have an internal diameter of not less than three and a half inches, and
to be continued upwards without diminution of its diameter, and (except where unavoidable)
without any bend or angle being formed in such soil pipe, to such a height and i.i
such a position as to afford by means of the open end of such soil pipe a safe outlet for
foul air, and so that such open end shall in all cases be above the highest part of the roof
of the building to which the soil pipe is attached, and where practicable, be not less than
three feet above any window within twenty feet measured in a straight line from the
open end of such soil pipe.
He shall furnish the open end of such soil pipe with a wireguard covering, the
openings in the meshes of which shall be equal to not less than the area of the open end
of the soil pipe.
In all such cases where he shall connect a lead trap or pipe with an iron soil pipe or
drain he shall insert between such trap or pipe and such soil pipe or drain a brass thimble,
and he shall connect such lead trap or pipe with such thimble by means of a wiped or
over-cast joint, and he shall connect such thimble with the iron soil pipe or drain by
means of a joint made with molten lead, properly caulked.
In all such cases where he shall connect a stoneware trap or pipe with a lead soil
pipe, he shall insert between such stoneware trap or pipe and such soil pipe a brass
socket or other similar appliance, end he shall connect such stoneware trap or pipe by
inserting it into such socket, making the joint with Portland cement, and he shall connect
such socket with the lead soil pipe, by means of a wiped or overcast joint.
In all cases where he shall connect a stoneware trap or pipe with an iron soil pipe
or drain, he shall insert such stoneware trap or pipe into a socket on such iron soil pipe
or drain, making the joint with Portland cement.