POOL OPERATOR EVALUATION EXAM QUESTIONS AND
ANSWERS SURE A+
✔✔how to raise or lower total alkalinity - ✔✔raise - baking soda (sodium bicarbonate)
lower - muriatic acid
✔✔calcium hardness - ✔✔the mineral content in the water and should be at around 150
- 400
checked every week at a pool and everyday for a spa
✔✔raise or lower calcium hardness - ✔✔raise - add calcium chloride
lower - drain and fill
✔✔total dissolved solids - ✔✔TDS, a measurement of all organic and inorganic
materials in water such as sweat, urine, salts
tested everyday for an indoor pool and TDS test kit is required
has to be less than 1500. To lower you have to drain and fill
✔✔Temperature of a pool - ✔✔swimming pool - 88
therapy pool - 96
spa - 104
✔✔Langelier Saturation Index - ✔✔pH + CF + AF + TF - 12.1
should be -.5 - +.5 and it must be tested every week for a pool and every day for a spa.
Higher is scaling and lower is corrosive
✔✔Pseudomonas - ✔✔is a bacteria that thrives in warm waters. found in water with
temp over 89 degrees farenheit
✔✔employees have the right to know - ✔✔they may come in contact with blood
may come in contact with dangerous chemicals
personal protective equipment is provided
given material safety data sheets
✔✔chlorine is the best disinfectant in the halogen family because it is the best -
✔✔oxidizer
, ✔✔unstabilized chlorine - ✔✔do not contain carbon and are very sensitive to UV light.
when the sun comes out the chlorine will go away
✔✔stabilized chlorine - ✔✔they do contain carbon usually in combo with other elements
and are not sensitive to the UV light
✔✔Cyanuric acid - ✔✔chemical used to stabilize an outdoor pool to protect chlorine
against UV rays.
range is 30 - 100 and must be tested every week for a pool
✔✔ACC or available chlorine content - ✔✔refers to relative sanitizing and oxidizing
strength
✔✔Sodium hypochlorite - ✔✔has an average of 12 % ACC
✔✔gas chlorine - ✔✔100 % ACC
ventilation fan is required to be near the floor bc Cl gas is heavy
chain tanks to the wall
need spray bottle of ammonia to detect a leak
gas mask
ph of cl = 2.0 low and use soda ash daily
✔✔calcium hypochlorite - ✔✔long shelf life and is either dry granular or a tablet form.
✔✔erosion feeders - ✔✔enclosed apparatuses used to dispense disinfectants. water
flows through the feeder eroding the solids inside and sending the disinfected water into
the system
✔✔lithium hypochlorite - ✔✔for backyard pool. granular and it is very soluble
✔✔trichloroisocyanuric acid (tri chlor) - ✔✔prestabalized and has a very low solubility
rate and therefore is excellent for erosion feeders, floaters, skimmer use
✔✔sodium dichloroicyanuric acid (di chlor) - ✔✔pre stabalized and is very soluble.
✔✔FAC free available chlorine - ✔✔sum of HOCL and OCL-. It is the species that
actually disinfects the water. The hypochlorite anion has very little oxidizing potential
and does not play a very big part in disinfecting the water
ANSWERS SURE A+
✔✔how to raise or lower total alkalinity - ✔✔raise - baking soda (sodium bicarbonate)
lower - muriatic acid
✔✔calcium hardness - ✔✔the mineral content in the water and should be at around 150
- 400
checked every week at a pool and everyday for a spa
✔✔raise or lower calcium hardness - ✔✔raise - add calcium chloride
lower - drain and fill
✔✔total dissolved solids - ✔✔TDS, a measurement of all organic and inorganic
materials in water such as sweat, urine, salts
tested everyday for an indoor pool and TDS test kit is required
has to be less than 1500. To lower you have to drain and fill
✔✔Temperature of a pool - ✔✔swimming pool - 88
therapy pool - 96
spa - 104
✔✔Langelier Saturation Index - ✔✔pH + CF + AF + TF - 12.1
should be -.5 - +.5 and it must be tested every week for a pool and every day for a spa.
Higher is scaling and lower is corrosive
✔✔Pseudomonas - ✔✔is a bacteria that thrives in warm waters. found in water with
temp over 89 degrees farenheit
✔✔employees have the right to know - ✔✔they may come in contact with blood
may come in contact with dangerous chemicals
personal protective equipment is provided
given material safety data sheets
✔✔chlorine is the best disinfectant in the halogen family because it is the best -
✔✔oxidizer
, ✔✔unstabilized chlorine - ✔✔do not contain carbon and are very sensitive to UV light.
when the sun comes out the chlorine will go away
✔✔stabilized chlorine - ✔✔they do contain carbon usually in combo with other elements
and are not sensitive to the UV light
✔✔Cyanuric acid - ✔✔chemical used to stabilize an outdoor pool to protect chlorine
against UV rays.
range is 30 - 100 and must be tested every week for a pool
✔✔ACC or available chlorine content - ✔✔refers to relative sanitizing and oxidizing
strength
✔✔Sodium hypochlorite - ✔✔has an average of 12 % ACC
✔✔gas chlorine - ✔✔100 % ACC
ventilation fan is required to be near the floor bc Cl gas is heavy
chain tanks to the wall
need spray bottle of ammonia to detect a leak
gas mask
ph of cl = 2.0 low and use soda ash daily
✔✔calcium hypochlorite - ✔✔long shelf life and is either dry granular or a tablet form.
✔✔erosion feeders - ✔✔enclosed apparatuses used to dispense disinfectants. water
flows through the feeder eroding the solids inside and sending the disinfected water into
the system
✔✔lithium hypochlorite - ✔✔for backyard pool. granular and it is very soluble
✔✔trichloroisocyanuric acid (tri chlor) - ✔✔prestabalized and has a very low solubility
rate and therefore is excellent for erosion feeders, floaters, skimmer use
✔✔sodium dichloroicyanuric acid (di chlor) - ✔✔pre stabalized and is very soluble.
✔✔FAC free available chlorine - ✔✔sum of HOCL and OCL-. It is the species that
actually disinfects the water. The hypochlorite anion has very little oxidizing potential
and does not play a very big part in disinfecting the water
