Page 86 - Vessel Sanitation Program 2018 Construction Guidelines

VSP 2018 Construction Guidelines

• Written documentation that the manufacturer’s
recommendations have been followed for applying, drying, and
curing.

22.7.1.7 Items That Penetrate Tank
Coat all items that penetrate the tank (e.g., bolts, pipes, pipe flanges)
with the same product used for the tank’s interior.

22.7.1.8 Superchlorination
Design tanks to be superchlorinated one tank at a time.

22.7.1.9 Lines for Nonpotable Liquids
Ensure that lines for nonpotable liquids do not pass through POTABLE
WATER TANKS.

22.7.1.10 Nonpotable Lines Above Potable Water Tanks
Minimize the use of nonpotable lines above POTABLE WATER
TANKS. If nonpotable water lines are installed, do not use mechanical
couplings or push-fit or press-fit piping on lines above tanks.

For SCUPPER lines, factory assembled transition fittings for steel to
plastic pipes are allowed when manufactured per ASTM F1973 or
equivalent standard.

22.7.1.11 Coaming
If coaming is present along the edges or top of the tank, provide slots
along the coaming to allow leaking liquids to run off and be detected.

22.7.1.12 Welded Pipes
Treat welded pipes over POTABLE WATER storage tanks to make
them corrosion resistant.

22.7.1.13 Lines Inside Potable Water Tanks
Treat all POTABLE WATER lines inside POTABLE WATER TANKS
to make them jointless and NONCORRODING.

22.7.1.14 Label Tanks
Label each POTABLE WATER TANK on its side and where clearly
visible with a number and the exact wording “POTABLE WATER” in
letters a minimum of 13 millimeters (1/2 inch) high.

22.7.1.15 Sample Cock
Install at least one sample cock at least 450 millimeters (18 inches)
above the deck plating on each tank. The sample cock must be easily
ACCESSIBLE.

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