Page 90 - Vessel Sanitation Program 2018 Operations Manual

VSP 2018 Operations Manual

5.7.1.2.9 Location (08)
BACKFLOW PREVENTION DEVICES and AIR GAPS must be
ACCESSIBLE for inspection, testing, service, and maintenance. If
access panels are required, provide panels large enough for testing,
service, and maintenance.

5.7.1.3 Air Supply Connections

5.7.1.3.1 Air Supply (08)
A compressed air system that supplies pressurized air to both
nonpotable and POTABLE WATER pneumatic tanks must be
connected through a press-on (manual) air valve or hose.

5.7.1.3.2 Separate Compressor
A fixed connection may be used when the air supply is from a
separate compressor used exclusively for POTABLE WATER
pneumatic tanks.

5.7.2 Backflow Prevention Device Inspection and Testing

5.7.2.1 Maintenance

5.7.2.1.1 Maintained (08)
BACKFLOW PREVENTION DEVICES must be maintained in
good repair.

5.7.2.2 Inspection and Service

5.7.2.2.1 Schedule (08)
BACKFLOW PREVENTION DEVICES should be periodically
inspected and any failed units must be replaced.

A visual check must be completed for all nontestable
BACKFLOW PREVENTION DEVICES and AIR GAPS at least
annually.

5.7.2.2.2 Test Annually (08)
BACKFLOW PREVENTION DEVICES requiring testing (e.g.,
reduced pressure BACKFLOW PREVENTION DEVICES and
PRESSURE VACUUM BREAKERS) must be inspected and
tested with a test kit after installation and at least annually. Test
results showing the pressure differences on both sides of the valves
must be maintained for each device.

5.0 Potable Water; 61