Page 243 - Vessel Sanitation Program 2018 Operations Manual

VSP 2018 Operations Manual

This may require starting with the engine room deck. As each connection is
identified, it is added to a listing. All information related to this connection
should also be added to the listing. An example of required information can be
found in section 13.7.5.1. Unprotected or inadequately protected connections
must be addressed as quickly as possible, especially if the connection is a health
HAZARD.

13.7.4 Backflow Protection Methods
All figures in this section are provided courtesy of the U.S. Environmental
Protection Agency (EPA).

13.7.4.1 Nonmechanical Backflow Protection

AIR GAP Antisiphon loop

13.7.4.2 Mechanical Backflow Protection

ATMOSPHERIC VACUUM BREAKER

Annex 13.7: Sample Cross-Connection Control Program Guideline; 190