a. Promote safer water by reducing stagnation time.
b. Reduce costs associated with unnecessarily large pipe diameters.
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b. 120 degrees F
c. 130 degrees F
d. 140 degrees F
a. 0.15 percent
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c. 0.33 percent
d. 0.5 percent
a. black, white
b. white, black
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d. yellow, green