22.
ferric chloride. (para 5-11a(3) (b)
23.
upstream from camp. (para 5-12a(1))
24.
small pieces of floating solid matter. (para 5-12b(5))
25.
polymer, sodium hex, citric acid, and chlorine drive units.
(paras 5-12b,c and figure 5-23)
26.
27.
10 psi. (para 5-12c(3)(b))
28.
reverse osmosis elements. (para 5-12c(3)(c))
29.
other three pressure vessels. (para 5-12c(3)(c))
30.
(para 5-120(4)).
End of Lesson 5
MD0160
5-52