Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Port of London]
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SUGGESTED CODE OF PRACTICE
The supply of fresh water from shore to ships
Equipment
All components should be kept clean and maintained exclusively for this purpose.
It should be kept in a properly appointed store and transported to and from the watering
point in a suitable and covered truck.
No other equipment than that of the Port of London Authority should be used for supplying
fresh water.
All hoses should be lined with rubber internally.
Every precaution should be taken to preserve the clean condition of the hose during the
watering operation.
Those components taken to the watering point and not required should be left in the truck.
Watering Points
These should be clearly identified by a number at the site and the hydrant-pit cover given a
durable and conspicious coat of paint.
The permanent hydrant-pit covers should be watertight and, when the hydrant is being used, a
closely fitted temporary cover should be available to allow for a standpipe and to shelter the
hydrant-pit.
All hydrant-pits should be effectively drained, rendered with a smooth and light-coloured
surface, and always kept in a clean condition.
The hydrant discharge should always be effectively capped when not in use.
Operation
Connections at the hydrant and on the ship should be supervised by an authorised officer of
the Port of London Authority.
Standpipes should be used at the hydrant and hoses kept clear of quay and dock water.
All connections at the ship must be made in order to avoid any possibility of back-syphonage
from the ship installation to the shore mains supply.
In any circumstances where a closed-connection must be made on the ship, an effective nonreturn
device should be incorporated in the supply equipment to safeguard against back-syphonage.
The water supply equipment should always be adequately flushed through before allowing
the supply to enter the ship's filling lines.
As far as practicable, the supply of fresh water should not be left unattended by an authorised
person.
Any contaminated equipment should not be used until it has been returned to the store for
suitable cleansing.
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