Pool Operator Exam with Complete
Solutions| Latest Update
calcium hardness is affected by _______ temperature
when temp rises, calcium hardness becomes ______ less soluble
low calcium hardness leads to (3) corrosive water, wall stains, heater failure
if you have low calcium hardness, add calcium chloride
high calcium hardness leads to (3) scale, cloudy water, clogged filters
the only way to lower calcium hardness is to _____ partially drain the water and replace it
max temperature of a pool or spa 104 degrees
at higher temps, there is an increased tendency for _____ scaling
at lower temperatures, there is an increased tendency for ______ corrosion
maximum total disolved solids 1500
, saturation index equation: SI= pH + TF + CF + AF + TDSF
green water presence of copper
red-brown water presence of iron
number one reason for cloudy water improper filtration
too much calcium in the water leads to scale
cause of foaming organic waste
three types of algae green, black, yellow
most common and most easily controlled algae green
algae resulting from poor pool circulation black
algae that is difficult to control and often requires_____ yellow, algaecide
Solutions| Latest Update
calcium hardness is affected by _______ temperature
when temp rises, calcium hardness becomes ______ less soluble
low calcium hardness leads to (3) corrosive water, wall stains, heater failure
if you have low calcium hardness, add calcium chloride
high calcium hardness leads to (3) scale, cloudy water, clogged filters
the only way to lower calcium hardness is to _____ partially drain the water and replace it
max temperature of a pool or spa 104 degrees
at higher temps, there is an increased tendency for _____ scaling
at lower temperatures, there is an increased tendency for ______ corrosion
maximum total disolved solids 1500
, saturation index equation: SI= pH + TF + CF + AF + TDSF
green water presence of copper
red-brown water presence of iron
number one reason for cloudy water improper filtration
too much calcium in the water leads to scale
cause of foaming organic waste
three types of algae green, black, yellow
most common and most easily controlled algae green
algae resulting from poor pool circulation black
algae that is difficult to control and often requires_____ yellow, algaecide
