4.1 At least every 30 days a general visual inspection should be made of the
overall system condition for obvious signs of damage, and should include verification
that:
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.1 all stop valves are in the closed position;
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.2 all releasing controls are in the proper position
and readily accessible for immediate use;
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.3 all discharge piping and pneumatic tubing is
intact and has not been damaged;
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.4 all high pressure cylinders are in place and
properly secured; and
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.5 the alarm devices are in place and do not appear
damaged.
4.2 In addition, on low pressure systems the inspections should verify
that:
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.1 the pressure gauge is reading in the normal
range;
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.2 the liquid level indicator is reading within
the proper level;
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.3 the manually operated storage tank main service
valve is secured in the open position; and
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.4 the vapour supply line valve is secured in
the open position.