Page 103 - Vessel Sanitation Program 2018 Construction Guidelines

VSP 2018 Construction Guidelines

Secondary
ANTI-
Option* Type Drainage/Recirculation System Cover Design ENTRAPMENT
8 SUCTION Single BLOCKABLE DRAIN or ASME A112.19.8 SVRS or APS
FITTING multiple drains (less than 1 meter compliant cover
[3 feet] apart)
*Options 1 through 5 are for fittings not under direct suction. These include both fittings to drain
the RECREATIONAL WATER FACILITY and fittings used to recirculate the water.
Options 6 through 8 are for fittings under direct suction. These include fittings to drain the
RECREATIONAL WATER FACILITY and fittings to recirculate the water.

**Definitions:
• Alarm = the audible alarm must sound in a continuously manned space AND at the
RECREATIONAL WATER FACILITY. This alarm is for all draining: accidental,
routine, and emergency.
• GDS (GRAVITY DRAINAGE SYSTEM) = a drainage system that uses a collector tank
from which the pump draws water. Water moves from the RECREATIONAL WATER
FACILITY to the collector tank due to atmospheric pressure, gravity, and the
displacement of water by bathers. There is no direct suction at the RECREATIONAL
WATER FACILITY.
• SVRS (SAFETY VACUUM RELEASE SYSTEM) = a system that stops pump
operation, reverses circulation flow, or otherwise provides a vacuum release at a suction
outlet when a blockage is detected. The system must be tested by an independent third
party and conform with ASME/ANSI A112.19.17 or ASTM standard F2387.
• APS (AUTOMATIC PUMP SHUT-OFF system) = a device that detects a blockage and
shuts off the pump system. A manual shut-off near the RECREATIONAL WATER
FACILITY does not qualify as an APS.

28.2 Depth Markers

28.2.1 Installation
Install depth markers for each RECREATIONAL WATER FACILITY where
the maximum water depth is 1 meter (3 feet) or greater. Install depth markers so
they can be seen from the deck and inside the RECREATIONAL WATER
FACILITY tub. Ensure the markers are in both meters and feet. Additionally,
depth markers must be installed for every 1-meter (3-foot) change in depth.

28.3 Safety Signs

28.3.1 Installation
Install safety signs at each RECREATIONAL WATER FACILITY except for
BABY-ONLY WATER FACILITIES. At a minimum the signs must include
the following words:
• Do not use these facilities if you are experiencing diarrhea, vomiting, or
fever.
• No children in diapers or who are not toilet trained.
• Shower before entering the facility.
• Bather load number. (The maximum bather load must be based on the

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