Quantcast Chapter 11. Hose Maintenance Repair

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11.1.1 PURPOSE.  Sewage hoses are used for conveyance and proper disposal
of infectious raw sewage that must not come into contact with personnel,
foodstuffs, cargo, or other materials.  Raw sewage becomes a pollutant in
violation of water quality standards when discharged directly into the har-
bor or other restricted waters.  Raw sewage is obnoxious, and can lead to
such nuisances as unsightliness, odors, and insect breeding if not handled
Thus, the need to protect health of personnel aboard ship and onshore
makes it critically important to maintain sewage hoses in top condition at
all times.  At the same time, meeting this responsibility will assure that
water quality standards are not violated and that nuisances are not created.
The 4-inch sewage hoses are heavy and cumbersome, especially when a
number of 50-foot sections are linked together.  If hoses part in the han-
dling process, there is danger of injury to personnel on the pier or on board
ship.  Falling hoses, particularly the heavy hose fittings, can do damage to
the ship and to equipment aboard ship or on the pier.  Finally, failure of
hoses while in use can bring about additional damage to hoses and fittings,
necessitating costly replacement or repairs.
Thus, a preventive maintenance program for ship-to-shore sewage transfer
hoses is of vital importance for protecting the health of personnel, pre-
venting water pollution, and avoiding safety hazards.  Additional benefits
may be realized from cost savings which result from prolonging the lives of
the hoses.
1101.2 INSPECTION OF HOSES.  Inspection of sewage hoses should be a contin-
uing process.  Hoses should be inspected during every major handling step
that takes place:  removing the hoses from storage and placing them in the
transport vehicle, connecting the hoses to the vessel, disconnecting the
hoses from the vessel, and during and after cleaning. The shore crew should
check for loose or damaged fittings (those with cracks or other major flaws);
worn, frayed, cracked, or crushed hoses; and defective gaskets.  At the same
time, the ship's crew should inspect all sewage hose connections at least
once each watch and report hose problems by telephone to the shore support
duty desk.
If a length of hose has a flaw that cannot be repaired on the spot, it
should be set aside for repair rather than placed in service.  If the hose
length is in service at the time the flaw is discovered, it should be
flushed, disconnected, replaced, and removed for repair. The defective hose
must be cleaned before it is repaired.
While sewage hose inspection is a continuous process, the best oppor-
tunity to make a detailed inspection is during the hose washing procedure.
With the hose on the washing rack or apron, the shore crew can examine the
cam-lock fittings at both ends of the lengths of hoses, attachment of the


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