About this chapter: Chapter 6 covers facilities commonly known as water parks. Such facilities can have a variety of pools ranging from zero depth entry wave pools to lazy rivers. This chapter includes requirements for floor slopes, steps, marking, signage, circulation systems, handholds and swimouts.
In water depths of less than 5 feet (1524 mm), the floor slope shall be not greater than 1 unit vertical in 12 units horizontal (8.3-percent slope) except where the function of the attraction requires greater slopes in limited areas.
Exception: The slope of the floor in Class D-3 pools shall not exceed 1 unit vertical in 7 units horizontal (14-percent slope).
Circulation system equipment shall be designed to turn over 100 percent of the nominal pool water volume in the amount of time specified in Table 604.2. The system shall be designed to give the required turnover time based on the manufacturer's recommended maximum pressure and flow of the filter in clean media condition.
|CLASS OF POOL||MAXIMUM TURNOVER TIMEa|
|D-2 with less than 24 inches water depth||1|
|D-2 with 24 inches or greater water depth||2|
For SI: 1 inch = 25.4 mm.
- Pools with a sand bottom require a 1-hour turnover time.
Surface skimming systems shall be in accordance with Table 604.3.
|CLASS OF POOL||SURFACE SKIMMING SYSTEM|
|D-1||Zero-depth trench located at static water level or other skimming systems|
|D-2||Auto skimmer, zero-depth trench or gutters|
|D-3||Auto skimmer, zero-depth trench or perimeter device|
|D-4||Single or multiple skimmer devices for skimming flow|
|D-5||Skimmers prohibited in side area|
|D-6||Auto skimmer, zero-depth trench, or gutter|
A rope and float line shall be provided for all of the following situations:
- Separation of activity areas.
- Identification of a break in floor slope at water depths of less than 5 feet (1524 mm).
- Identification of a water depth greater than 41/2 feet (1372 mm) in constant floor slope in Class D-2 pools.
Exception: Class D-1 pools or any other pool where the designer indicates that such a line is not required or that the line would constitute a hazard.
The occupant load for the pools or spas in the facility shall be calculated in accordance with Table 608.1. The occupant load shall be the combined total of the number of users based on the pool or spa water surface area and the deck area surrounding the pool or spa. The deck area occupant load shall be based on the occupant load calculated where a deck is provided or based on an assumed 4-foot-wide (1219 mm) deck surrounding the entire perimeter of the pool or spa, whichever is greater.
ENTRY AND EXIT LOCATIONS
|CLASS OF POOL||ENTRY AND EXIT LOCATIONS|
|D-1||Entry at beach end only; exit at beach end, sides or end wall|
|D-2||Entry and exit determined by the pool designer|
|D-3||Entry prohibited from deck areas; exit by ladders, steps or ramps as determined by pool designer|
|D-4||Entry and exit determined by the pool designer|
|D-5||Entry and exit determined by the pool designer|
|D-6||Entry and exit determined by the pool designer|
Messages delivered on signs shall comply with all of the following:
- Messages shall be pertinent to the activity being performed or to be performed.
- Messages shall be specific by providing details about the activity.
- Messages shall be short and concise.
- Messages shall be direct without humor or embellishments.