The following item numbers are being clarified in response to industry questions. Text from the VSP 2011 Construction Guidelines is printed first, then the clarification.# Potable Water System

# Location of Seawater Inlets
Locate the SANITARY SEAWATER intakes (sea chests) forward of all overboard waste discharge outlets such as emergency and routine discharge lines from wastewater treatment facilities, the bilge, RECREATIONAL WATER FACILITIES, and ballast tanks.
This does not include the following:  Discharges from DECK DRAINS on open decks.  Cooling lines with no chemical treatment.  Alarmed vent/overflow pipes for GRAY WATER, treated GRAY or BLACK WATER, and ballast tanks with an automatic shutoff system for SANITARY SEAWATER intake. These alarms must be visual and audible and must sound in a space that is continuously occupied.  Alarmed emergency bilge discharge lines with an automatic shutoff system for SANITARY SEAWATER intake. These alarms must be visual and audible and must sound in a space that is continuously occupied.

# Clarification
Discharges from the anchor chain locker are allowed forward of the sea chest if the chain is rinsed/cleaned only with sea water.
Alarmed vent/overflow pipes for heeling tanks and laundry water storage tanks with an automatic shutoff system for SANITARY SEAWATER intake are allowed. These alarms must be visual and audible and must sound in a space that is continuously occupied.

# RWF Showers and Toilet Facilities

# Shower Temperature
Equip showers to provide POTABLE WATER at a temperature not to exceed 43C (110F) during normal operations. Install the showers within 10 meters of the entrances to RWFs. The location and number of showers for multifacilities with multiple entrances will be determined during the plan review.

# Clarification
The showers must be located within 10 meters of all entrances to each RWF.

# Recirculation and Filtration

# Clarification
For facilities that meet the definition of more than one type of RWF, the more protective turnover rate applies. For example, if a CHILDREN'S POOL also has features of an INTERACTIVE RWF or ACTIVITY POOL, the turnover rate must be 0.5 hours.

# Monitoring and Recording
Provide an automatic monitoring and recording system for the free HALOGEN residuals in MG/L (ppm) and PH levels. The recording system must be capable of recording these levels 24 hours/day.
Install chart recorders or electronic data loggers with security features that record PH and HALOGEN measurements.
Electronic data loggers must be capable of recording in increments of 15 minutes.
The probe for the automated analyzer recorder must be installed before the compensation or make-up tank or from a line taken directly from the RWF.
Install appropriate sample taps for analyzer calibration.

# Clarification
If potable water is introduced into RWFs with recirculated water after filtration and chemistry control and the potable water combines with the RWF recirculation system, the potable water must be halogenated and PH controlled to the level required for the RWF. The resulting mixture would negatively impact the monitoring analyzer for the RWF.

# Installation

# Clarification
If an ACTIVITY POOL has INTERACTIVE RWF features, such as flowing, misting, sprinkling, jetting, and waterfalls, a secondary disinfection system must be installed.

# Additional Requirements for Children's Pools
Secondary Disinfection System

# Cleaning
Install UV systems that allow for cleaning of the lamp jacket without dissembling the unit.

# Clarification
The lamp must be accessible without having to disassemble the entire unit. For example, it is acceptable if the lamp is accessed for cleaning by removing fasteners and/or a cover.

# Additional Requirements for Baby-only Water Facility

# Content
Install an easy-to-read permanent sign, with letters at least 25 millimeters (1 inch) high, at each entrance to the BABY-ONLY WATER FACILITY feature. At a minimum, the sign should state the following:  This facility is intended for use by children in diapers or children who are not completely toilet trained.  Use of this facility may put children at increased risk for illness.  Children who have a medical condition that may put them at increased risk for illness should not use these facilities.  Children who are experiencing symptoms such as vomiting, diarrhea, skin sores, or infections are prohibited from using these facilities.  Children must wear a swim diaper.  Children must be accompanied by an adult at all times.  Ensure that children have a clean swim diaper before using these facilities. Frequent swim diaper changes are recommended.  Do not change diapers in the area of the BABY-ONLY WATER FACILITY. A diaper changing station has been provided (give exact location) for your convenience.

# Clarification
The letters on the sign heading must be at least 26 millimeters (1 inch) high, but all other lettering must be at least 13 millimeters (1/2 inch) high.