5.1
General requirements.
Design dimensions
shall comply with specifications in this standard. The
pool shall be constructed to these design dimensions
within the tolerances listed in 5.1.1.
5.1.1 Construction tolerances.
There shall be
construction tolerances allowed on dimensional de-
signs. The overall length, width and depth shall be
limited to a tolerance of plus or minus 3 inches (± 7.6
cm). All other dimensions shall be limited to a toler-
ance of plus or minus 2 inches (± 5.1 cm), unless
otherwise specified.
5.2 Perimeter
shape.
No limits are specified for
shape of pools except that consideration shall be
given to shape from the standpoint of circulation of
the swimming pool water and safety to the user.
5.3
Walls - requirements
5.3.1
Walls in the shallow area and deep
area of the pool shall not slope greater than 11
°
(1:5
slope
ratio) to a transition point. The transition point
shall not be less than 2 feet and 9 inches (83.8 cm)
below the waterline. See Fig. 1.
5.3.2
As shown in Fig. 2, at the depths of (a)
and (b), the walls are permitted to join the floor.
Fig. 1- Maximum allowable wall slope
Figure 2- Typical pool design configurations
ARTICLE 5 - POOL DIMENSIONS AND TOLERANCES
EXTRACTED FROM ANSI/NSPI-5 2003
AMERICAN NATIONAL STANDARD FOR RESIDENTIAL INGROUND SWIMMING POOLS
A
Figure 1- Maximum allowable wall slope
