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 TM 55-1905-220-14-8
4-15. SEWAGE SYSTEM - MAINTENANCE INSTRUCTIONS (Continued).
(Continued)
Do not be misled by the term "low voltage". Potentials as
low as 50 volts may cause death under adverse conditions.
Sewage is an inclusive term generally applied to the mixture
of all liquid domestic wastes, especially human body wastes.
The character of sewage changes from place to place but it
always contains very large numbers of bacteria - hundreds
of million per milliliter - some of which can cause dangerous
illness in man. Typhoid and polio viruses are two examples.
The entering of these bacteria to the human body is through
the mouth or open sores. It is important therefore to observe
certain elementary precautions.
1. No food or drink of any nature should be taken into sewage
handling areas.
2. Personnel with open cuts or sores should not work on
sewage handling equipment.
3. Any sewage spill should be dealt with immediately, before it
dries; by washing down with water and a good quality, non-
scented disinfectant. Liquid soaps or scented disinfectants
should not be used since they only serve to disguise
improper clean-up.
4. All personnel should be encouraged to wash their hands on
exit from a sewage handling area or after being in contact
with sewage handling equipment.
4-609
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