Page 106 - Vessel Sanitation Program 2018 Construction Guidelines

VSP 2018 Construction Guidelines

public RECREATIONAL WATER FACILITIES. Ensure commercial filtration
rates for calculations are used for cartridge filters if multiple rates are provided
by the manufacturer.

29.9.3 Backwash
Ensure media-type filters are capable of being backwashed. Provide a clear
sight glass on the backwash side of all media filters.

29.9.4 Accessories
Install filter accessories, such as pressure gauges, air-relief valves, and flow
meters. Install safety features on delivery lines to control chemical dosing
unless the design of the system prevents water flow to analyzers if circulation
fails.

29.9.5 Access
Design and install filters and filter housings in a manner that allows access for
inspection, cleaning, and maintenance.

29.9.6 Manufacturer’s Information
Provide manufacturer’s specifications and recommendations for filtration
systems.

29.10 Turnover Rates
Install recirculation pumps, filtration, and DISINFECTION equipment that have the
capacity to turn over water in the RECREATIONAL WATER FACILITY at the
appropriate rates as set forth in table the below.

Ensure that TURNOVER rates may be increased based on bather load. (The
maximum bather load must be based on the following factor: One person per 19 liters
[5 gallons] per minute of recirculation flow.)

RECREATIONAL WATER FACILITY TURNOVER Rate
SWIMMING POOL 4 hours
CHILDREN’S POOL 0.5 hours
WADING POOL 1 hour
WHIRLPOOL SPA 0.5 hours
SPA POOL 2 hours
INTERACTIVE RECREATIONAL WATER 1 hour
FACILITY or ACTIVITY POOL
(< 610 millimeters [24 inches] deep)
INTERACTIVE RECREATIONAL WATER 2 hours
FACILITY or ACTIVITY POOL
(> 610 millimeters [24 inches] deep)
BABY-ONLY WATER FACILITY 0.5 hours
Custom installations (where the above is not To be determined by design
applicable) engineer with VSP review

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