NEHA Guide Swimming Pools Exam
Questions & Answers (Grade A+)
What organisms have become recent concern in swimming pools? -
correct answer ✅Cryptosporidium, Pseudomonas
What impacts air quality in regards to swimming pools? -
correct answer ✅chloroform and chloramines
List of diseases in regards to swimming pools -
correct answer ✅e. coli
legionnella pneumophila
streptococcus
staphylococcus
naegleria fowleri
polio
giardiasis
leptospirosis
schistosomiasis
impetigo
ring worm
fungus infections
,NEHA Guide Swimming Pools Exam
Questions & Answers (Grade A+)
Ideal pH range -
correct answer ✅7.2-7.6
Free chlorine levels for pools / waterparks -
correct answer ✅1.0-5.0ppm
ideal 2.0-4.0
Free chlorine for spas -
correct answer ✅2.0-10.0 ppm
ideal 3-5ppm
What are required mounting distances for diving boards? -
correct answer ✅1 m (3ft) and 3 meters (10ft) above pool water
Length and width of diving boards? -
correct answer ✅16ft long and 20 inches wide
Diving boards to extend how many feet beyond pool? -
correct answer ✅6 feet
, NEHA Guide Swimming Pools Exam
Questions & Answers (Grade A+)
Formula for sizing pumps? -
correct answer ✅horsepower = (gpm) (head in feet) (3960)
(pumping efficiency)
Formula for turnover rate? -
correct answer ✅TR = pool capacity in gallons /flow meter reading
(gpm) (60)
A good pool filter will remove all particles greater than: -
correct answer ✅10 micrometers
What are the 3 types of filters? -
correct answer ✅1. sand
2. diatomaceous earth
3. cartridge
Which sand filter operates at a rate of 3 gallons / min / sq ft? -
correct answer ✅rapid rate sand filter
Which sand filter has a max filter loading rate range of 12-20 gpm /
sq ft? -
correct answer ✅high rate sand filter
Questions & Answers (Grade A+)
What organisms have become recent concern in swimming pools? -
correct answer ✅Cryptosporidium, Pseudomonas
What impacts air quality in regards to swimming pools? -
correct answer ✅chloroform and chloramines
List of diseases in regards to swimming pools -
correct answer ✅e. coli
legionnella pneumophila
streptococcus
staphylococcus
naegleria fowleri
polio
giardiasis
leptospirosis
schistosomiasis
impetigo
ring worm
fungus infections
,NEHA Guide Swimming Pools Exam
Questions & Answers (Grade A+)
Ideal pH range -
correct answer ✅7.2-7.6
Free chlorine levels for pools / waterparks -
correct answer ✅1.0-5.0ppm
ideal 2.0-4.0
Free chlorine for spas -
correct answer ✅2.0-10.0 ppm
ideal 3-5ppm
What are required mounting distances for diving boards? -
correct answer ✅1 m (3ft) and 3 meters (10ft) above pool water
Length and width of diving boards? -
correct answer ✅16ft long and 20 inches wide
Diving boards to extend how many feet beyond pool? -
correct answer ✅6 feet
, NEHA Guide Swimming Pools Exam
Questions & Answers (Grade A+)
Formula for sizing pumps? -
correct answer ✅horsepower = (gpm) (head in feet) (3960)
(pumping efficiency)
Formula for turnover rate? -
correct answer ✅TR = pool capacity in gallons /flow meter reading
(gpm) (60)
A good pool filter will remove all particles greater than: -
correct answer ✅10 micrometers
What are the 3 types of filters? -
correct answer ✅1. sand
2. diatomaceous earth
3. cartridge
Which sand filter operates at a rate of 3 gallons / min / sq ft? -
correct answer ✅rapid rate sand filter
Which sand filter has a max filter loading rate range of 12-20 gpm /
sq ft? -
correct answer ✅high rate sand filter
