Page 76 - Vessel Sanitation Program 2018 Operations Manual

VSP 2018 Operations Manual

5.3 Potable Water System

5.3.1 Potable Water Tanks

5.3.1.1 Protection

5.3.1.1.1 Potable Water Tank Walls (07 C)
POTABLE WATER TANKS must not share a common wall with
the hull of the vessel or with tanks or piping containing nonpotable
water or other liquids.

5.3.1.1.2 Nonpotable Piping (08)
Piping systems carrying SEWAGE or other nonpotable liquids
must not pass through POTABLE WATER TANKS. Minimize the
use of nonpotable lines above POTABLE WATER TANKS.
Nonpotable lines above POTABLE WATER TANKS must not
have any mechanical couplings.

For SCUPPER lines, factory assembled transition fittings for steel
to plastic pipes are allowed when manufactured per American
Society for Testing and Materials (ASTM) F1973 or equivalent
standard.

5.3.1.1.3 Coatings (08)
Interior coatings on POTABLE WATER TANKS must be
APPROVED for POTABLE WATER contact by a certification
organization. Follow all manufacturers’ recommendations for
application, drying, and curing.

The following must be maintained on board for the tank coatings
used:
• Written documentation of approval from the certification
organization (independent of the coating manufacturer).
• Manufacturers’ recommendations for application, drying,
and curing.
• Written documentation that the manufacturers’
recommendations have been followed for application,
drying, and curing.

5.3.1.2 Tank Construction

5.3.1.2.1 Identification (08)
POTABLE WATER TANKS must be identified with a number
and the words “POTABLE WATER” in letters at least
13 millimeters (0.5 inch) high.

5.0 Potable Water; 47