Page 32 - Vessel Sanitation Program 2018 Construction Guidelines

VSP 2018 Construction Guidelines

Recreational seawater: Seawater taken onboard while MAKING WAY at a position
at least 12 miles at sea and routed directly to the RWFs for either sea-to-sea exchange
or recirculation.

Recreational water facility (RWF): A water facility that has been modified,
improved, constructed, or installed for the purpose of public swimming or
recreational bathing. RWFs include, but are not limited to,
• ACTIVITY POOLS.
• BABY-ONLY WATER FACILITIES.
• CHILDREN’S POOLS.
• Diving pools.
• Hot tubs.
• Hydrotherapy pools.
• INTERACTIVE RECREATIONAL WATER FACILITIES.
• Slides.
• SPA POOLS.
• SWIMMING POOLS.
• Therapeutic pools.
• WADING POOLS.
• WHIRLPOOLS.

Reduced pressure principle backflow prevention assembly (RP assembly): An
assembly containing two independently acting internally loaded check valves
together with a hydraulically operating, mechanically independent pressure
differential relief valve located between the check valves and at the same time below
the first check valve. The unit must include properly located resilient seated test
cocks and tightly closing resilient seated shutoff valves at each end of the assembly.

Removable: Capable of being detached from the main unit with the use of simple
tools such as a screwdriver, pliers, or an open-end wrench.

Safety vacuum release system (SVRS): A system capable of releasing a vacuum at a
suction outlet caused by a high vacuum due to a blockage in the outlet flow. These
systems shall be designed and certified in accordance with ASTM F2387-04 or
ANSI/ASME A 112.19.17-2002.

Sanitary seawater lines: Water lines with seawater intended for use in the
POTABLE WATER production systems or in RECREATIONAL WATER
FACILITIES.

Scupper: A conduit or collection basin that channels liquid runoff to a DECK
DRAIN.

Sealant: Material used to fill SEAMS.

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