Pool Operator Exam
1) whole range chlorine in a pool: ____ to _____: 1, 5
2) ideal range chlorine in a pool: ____ to _____: 2, 4
3) whole range chlorine in a spa: ____ to _____: 2, 10
4) ideal range chlorine in a spa: ____ to _____: 3, 5
5) 4 types of solid chlorine: calcium hypochlorite, lithium hypochlorite, trichlor,
dichlor
6) liquid chlorine: sodium hypochlorite (NaOCl)
7) how active is gas chlorine: 100%
8) the active killing form of chlorine in water: hypochlorous acid (HOCl)
9) HOCl = ______: H+ (hydrogen ion) + OCl- (hypochlorite ion)
10) most common granular chlorine (pH range): calcium hypochlorite (8.5 -
11, used to super chlorinate water)
, . Pool Operator Exam
Study online at https://quizlet.com/_pdfxl
11) not common form of chlorine due to low active strength (pH): lithium
hypochlorite (10.8)
12) tablet/stick chlorine usually used in erosion feeder (pH - what will it
do?)-
13) : trichlor (2.8 - 3.5, lower alkalinity and pH over time)
14) salt used as a disinfectant (pH): dichlor (6.7 - common in vinyl lined pools)
15) most common type of chlorine used (pH): sodium hypochlorite (NaOCl -
13) 15. ______ needs special training to use and has a pH of ____ and will
_____ when added to water: gas chlorine, 0, lower pH 16. chlorine is most
effective as a pH of _____: 7.5
16) active disinfectant in the water: free chlorine (FC)
17) FC is determined by the ______ test and is maintained between ____
and
18) ____ ppm: DPD, 2, 4
1) whole range chlorine in a pool: ____ to _____: 1, 5
2) ideal range chlorine in a pool: ____ to _____: 2, 4
3) whole range chlorine in a spa: ____ to _____: 2, 10
4) ideal range chlorine in a spa: ____ to _____: 3, 5
5) 4 types of solid chlorine: calcium hypochlorite, lithium hypochlorite, trichlor,
dichlor
6) liquid chlorine: sodium hypochlorite (NaOCl)
7) how active is gas chlorine: 100%
8) the active killing form of chlorine in water: hypochlorous acid (HOCl)
9) HOCl = ______: H+ (hydrogen ion) + OCl- (hypochlorite ion)
10) most common granular chlorine (pH range): calcium hypochlorite (8.5 -
11, used to super chlorinate water)
, . Pool Operator Exam
Study online at https://quizlet.com/_pdfxl
11) not common form of chlorine due to low active strength (pH): lithium
hypochlorite (10.8)
12) tablet/stick chlorine usually used in erosion feeder (pH - what will it
do?)-
13) : trichlor (2.8 - 3.5, lower alkalinity and pH over time)
14) salt used as a disinfectant (pH): dichlor (6.7 - common in vinyl lined pools)
15) most common type of chlorine used (pH): sodium hypochlorite (NaOCl -
13) 15. ______ needs special training to use and has a pH of ____ and will
_____ when added to water: gas chlorine, 0, lower pH 16. chlorine is most
effective as a pH of _____: 7.5
16) active disinfectant in the water: free chlorine (FC)
17) FC is determined by the ______ test and is maintained between ____
and
18) ____ ppm: DPD, 2, 4
