Measurements should be made in at least three different locations on the swim course, spaced so as to divide the entire swim course into approximately equidistant segments, and measured at a depth of 18 inches below the water surface, at points where direct sunlight can strike the water.
(direct sunlight; can strike; the water; L:a depth of 18 inches below the water surface, at; L:points) (Measurements should be made in at least three different locations on the swim course; spaced; so as to divide the entire swim course into approximately equidistant segments, and measured at a depth of 18 inches below the water surface, at points)
direct sunlight Measurements should be made in at least three different locations on the swim course
can strike spaced
the water L:a depth of 18 inches below the water surface, at L:points
so as to divide the entire swim course into approximately equidistant segments, and measured at a depth of 18 inches below the water surface, at points