31.
Raise
Lower
Sodium carbonate
Sodium bisulfate
Sodium hydroxide
Hydrochloric acid
Sodium bicarbonate (para 1-11f)
Sulfuric acid (para 1-11f)
32.
Gas (para 1-12f(1))
33.
a. Satisfactory, no recommendations. All specifications are met.
(para l-13a(4))
b. Unsatisfactory. This can cause chlorine to condense in he lines. You
could suggest using a pressure-reducing valve to prevent condensation.
(para 1-13c(l))
c.
No. A wrench longer than 6 inches should not be used. You would
recommend using a shorter wrench. (para 1-13c(3))
d. It would be rated unsatisfactory. There should be an outside as well as
an inside switch. You would suggest installing an outside switch.
(para 1-13e)
e. They are satisfactory. No recommendations are needed.
(paras 1-13g, h)
34.
You would suggest using alum. (para 1-14c(2)(d))
35.
Observe a sharp increase in pH. (para 1-16b)
36.
c
(para 1-16a(4))
No. A water temperature less than 800F minimizes algae growth. Likewise,
37.
shading the pool and constantly maintaining free residual chlorine inhibit
algae growth. (para 1-16c(1), (2), (3))
38.
a.
Not hazardous. (para 1-17b(l))
b.
Hazardous. (para 1-17b(4))
c.
Hazardous. (para 1-17b(10))
d.
Not hazardous. (para 1-17b(9))
e.
Not hazardous. (para 1-17b(2))
f.
Hazardous. (para 1-17a(3))
g.
Not hazardous. (para 1-17a(l))
39.
One; American Red Cross Senior Lifesaving Certificate. (para 1-17c)
MD0166
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