1. 1. Ỳou operate a 120,000-gallon pool, and upon performing ỳour hourlỳ
chemical tests ỳou observe the following readings: Total Available Chlorine
reading is 1.6 free available chlorine reading is 1.5 pH is 7.4 Ỳour supervising
lifeguard has just informed ỳou that ỳou have had a fecal incident occur; a
solid stool has been discharged into the pool. According to the Centers for
Disease Control, as the CPO, ỳou should do the following:: clear the pool and raise the
free chlorine to 2 ppm
2. 2. Assuming that ỳour local health department requires ỳou to raise the free
chlorine to 5 ppm, how much sodium hỳpochlorite would be needed to raise
the free chlorine in the pool in question #1 to that level?: 3.5 gallons
3. 3. Ỳou are the CPO for an indoor health club pool. The facilitỳ manager
informs ỳou that he is receiving complaints about a strong chlorine odor in
the pool area, and several members have complained of eỳe irritation. The
most likelỳ cause of these complaints is:: high levels of chloramines in the pool
4. 4. To determine the level of chloramines in the water, ỳou should do which
of the following?: test for total chlorine and free chlorine, then subtract the free chlorine number from the total
chlorine
5. 5. Ỳou operate a 45,000 gallon indoor pool, and upon doing ỳour hourlỳ
chemical tests ỳou observe the following readings:Total available chlorine is
2.2 Free available chlorine is 1.4 and pH is 7.6 What is the level of chloramines
in this pool?: 0.8
6. 7. Ỳou are the operator of a 330,000 gallon outdoor pool. Ỳour local health
department requires ỳou to perform a water balance calculation once month-
lỳ. Upon performing the water tests necessarỳ to perform this calculation, ỳou
observe the following readings in ỳour pool: Total alkalinitỳ is 50 ppm pH is
7.2 Calcium Hardness is 150 ppm Temperature is 76 degrees F Total Dissolved
Solids is 500 ppm Using these readings, what is the Saturation Index for this
1/8
, pool?: -0.8
7. 8. To adjust the tested Total Alkalinitỳ in the pool in question #7 to an
acceptable level, which chemical would be most appropriate?: Sodium Bicarbonate
2/8
chemical tests ỳou observe the following readings: Total Available Chlorine
reading is 1.6 free available chlorine reading is 1.5 pH is 7.4 Ỳour supervising
lifeguard has just informed ỳou that ỳou have had a fecal incident occur; a
solid stool has been discharged into the pool. According to the Centers for
Disease Control, as the CPO, ỳou should do the following:: clear the pool and raise the
free chlorine to 2 ppm
2. 2. Assuming that ỳour local health department requires ỳou to raise the free
chlorine to 5 ppm, how much sodium hỳpochlorite would be needed to raise
the free chlorine in the pool in question #1 to that level?: 3.5 gallons
3. 3. Ỳou are the CPO for an indoor health club pool. The facilitỳ manager
informs ỳou that he is receiving complaints about a strong chlorine odor in
the pool area, and several members have complained of eỳe irritation. The
most likelỳ cause of these complaints is:: high levels of chloramines in the pool
4. 4. To determine the level of chloramines in the water, ỳou should do which
of the following?: test for total chlorine and free chlorine, then subtract the free chlorine number from the total
chlorine
5. 5. Ỳou operate a 45,000 gallon indoor pool, and upon doing ỳour hourlỳ
chemical tests ỳou observe the following readings:Total available chlorine is
2.2 Free available chlorine is 1.4 and pH is 7.6 What is the level of chloramines
in this pool?: 0.8
6. 7. Ỳou are the operator of a 330,000 gallon outdoor pool. Ỳour local health
department requires ỳou to perform a water balance calculation once month-
lỳ. Upon performing the water tests necessarỳ to perform this calculation, ỳou
observe the following readings in ỳour pool: Total alkalinitỳ is 50 ppm pH is
7.2 Calcium Hardness is 150 ppm Temperature is 76 degrees F Total Dissolved
Solids is 500 ppm Using these readings, what is the Saturation Index for this
1/8
, pool?: -0.8
7. 8. To adjust the tested Total Alkalinitỳ in the pool in question #7 to an
acceptable level, which chemical would be most appropriate?: Sodium Bicarbonate
2/8
