Certified../Pool../Operator../Handbook../Practice../Test../
1.../You../operate../a../120,000-
gallon../pool,../and../upon../performing../your../hourly../chemical../tests../you../obse
rve../the../following../readings:../Total../Available../Chlorine../reading../is../1.6../fre
e../available../chlorine../reading../is../1.5../pH../is../7.4../Your../supervising../lifeguar
d../has../just../informed../you../that../you../have../had../a../fecal../incident../occur;../a../so
lid../stool../has../been../discharged../into../the../pool.../According../to../the../Centers../f
or../Disease../Control,../as../the../CPO,../you../should../do../the../following:../-
../correct../answer../clear../the../pool../and../raise../the../free../chlorine../to../2../ppm
2.../Assuming../that../your../local../health../department../requires../you../to../raise../th
e../free../chlorine../to../5../ppm,../how../much../sodium../hypochlorite../would../be../ne
eded../to../raise../the../free../chlorine../in../the../pool../in../question../#1../to../that../level?..
/-../correct../answer../3.5../gallons
3.../You../are../the../CPO../for../an../indoor../health../club../pool.../The../facility../manag
er../informs../you../that../he../is../receiving../complaints../about../a../strong../chlorine../
odor../in../the../pool../area,../and../several../members../have../complained../of../eye../ir
ritation.../The../most../likely../cause../of../these../complaints../is:../-
../correct../answer../high../levels../of../chloramines../in../the../pool
4.../To../determine../the../level../of../chloramines../in../the../water,../you../should../do../
which../of../the../following?../-
../correct../answer../test../for../total../chlorine../and../free../chlorine,../then../subtract../t
he../free../chlorine../number../from../the../total../chlorine
, 5.../You../operate../a../45,000../gallon../indoor../pool,../and../upon../doing../your../hour
ly../chemical../tests../you../observe../the../following../readings:Total../available../c
hlorine../is../2.2../Free../available../chlorine../is../1.4../and../pH../is../7.6../What../is../the../
level../of../chloramines../in../this../pool?../-../correct../answer../0.8
7.../You../are../the../operator../of../a../330,000../gallon../outdoor../pool.../Your../local../
health../department../requires../you../to../perform../a../water../balance../calculation../
once../monthly.../Upon../performing../the../water../tests../necessary../to../perform../t
his../calculation,../you../observe../the../following../readings../in../your../pool:../Total.
./alkalinity../is../50../ppm../pH../is../7.2../Calcium../Hardness../is../150../ppm../Temper
ature../is../76../degrees../F../Total../Dissolved../Solids../is../500../ppm../Using../these../r
eadings,../what../is../the../Saturation../Index../for../this../pool?../-../correct../answer../-
0.8
8.../To../adjust../the../tested../Total../Alkalinity../in../the../pool../in../question../#7../to../a
n../acceptable../level,../which../chemical../would../be../most../appropriate?../-
../correct../answer../Sodium../Bicarbonate
9.../To../adjust../the../tested../pH../in../the../pool../in../question../#7../to../an../acceptable../
level,../which../chemical../would../be../most../appropriate?../-
../correct../answer../Sodium../Carbonate
10.../You../are../the../CPO../for../a../28,000../gallon../hotel../pool.../You../perform../a../w
ater../balance../chemical../test,../and../to../your../surprise,../the../Calcium../Hardness..
1.../You../operate../a../120,000-
gallon../pool,../and../upon../performing../your../hourly../chemical../tests../you../obse
rve../the../following../readings:../Total../Available../Chlorine../reading../is../1.6../fre
e../available../chlorine../reading../is../1.5../pH../is../7.4../Your../supervising../lifeguar
d../has../just../informed../you../that../you../have../had../a../fecal../incident../occur;../a../so
lid../stool../has../been../discharged../into../the../pool.../According../to../the../Centers../f
or../Disease../Control,../as../the../CPO,../you../should../do../the../following:../-
../correct../answer../clear../the../pool../and../raise../the../free../chlorine../to../2../ppm
2.../Assuming../that../your../local../health../department../requires../you../to../raise../th
e../free../chlorine../to../5../ppm,../how../much../sodium../hypochlorite../would../be../ne
eded../to../raise../the../free../chlorine../in../the../pool../in../question../#1../to../that../level?..
/-../correct../answer../3.5../gallons
3.../You../are../the../CPO../for../an../indoor../health../club../pool.../The../facility../manag
er../informs../you../that../he../is../receiving../complaints../about../a../strong../chlorine../
odor../in../the../pool../area,../and../several../members../have../complained../of../eye../ir
ritation.../The../most../likely../cause../of../these../complaints../is:../-
../correct../answer../high../levels../of../chloramines../in../the../pool
4.../To../determine../the../level../of../chloramines../in../the../water,../you../should../do../
which../of../the../following?../-
../correct../answer../test../for../total../chlorine../and../free../chlorine,../then../subtract../t
he../free../chlorine../number../from../the../total../chlorine
, 5.../You../operate../a../45,000../gallon../indoor../pool,../and../upon../doing../your../hour
ly../chemical../tests../you../observe../the../following../readings:Total../available../c
hlorine../is../2.2../Free../available../chlorine../is../1.4../and../pH../is../7.6../What../is../the../
level../of../chloramines../in../this../pool?../-../correct../answer../0.8
7.../You../are../the../operator../of../a../330,000../gallon../outdoor../pool.../Your../local../
health../department../requires../you../to../perform../a../water../balance../calculation../
once../monthly.../Upon../performing../the../water../tests../necessary../to../perform../t
his../calculation,../you../observe../the../following../readings../in../your../pool:../Total.
./alkalinity../is../50../ppm../pH../is../7.2../Calcium../Hardness../is../150../ppm../Temper
ature../is../76../degrees../F../Total../Dissolved../Solids../is../500../ppm../Using../these../r
eadings,../what../is../the../Saturation../Index../for../this../pool?../-../correct../answer../-
0.8
8.../To../adjust../the../tested../Total../Alkalinity../in../the../pool../in../question../#7../to../a
n../acceptable../level,../which../chemical../would../be../most../appropriate?../-
../correct../answer../Sodium../Bicarbonate
9.../To../adjust../the../tested../pH../in../the../pool../in../question../#7../to../an../acceptable../
level,../which../chemical../would../be../most../appropriate?../-
../correct../answer../Sodium../Carbonate
10.../You../are../the../CPO../for../a../28,000../gallon../hotel../pool.../You../perform../a../w
ater../balance../chemical../test,../and../to../your../surprise,../the../Calcium../Hardness..
