Full Course Flashcards
How many litres of water is contained in the pool? (Pg 10-17)
300,000L
If a pool has 300,000L of water in it, and the turnover rate is 5, what is the minimum flow rate necessary to meet the desired turnover rate? (Pg 10-17)
17.36 L/s
If a pool has 300,000L of water in it, and all of the water moves through the system in 5 hours, what is the turnover? (Pg 10-17)
5 hrs
If a pool has 300,000L of water in it, and all of the water moves through the circulation system in 5 hours, what is the turnover rate? (Pg 10-17)
4.8 hours — 24hrs divided by 5
A bottom drain is an example of an inlet?
True or False (Pg 20-36)
False
Pool circulation pumps use positive displacement to move water? True or False (Pg 20-36)
False
Pressure gauges are normally found on the influent and effluent lines of the pump? True or False (Pg 20-36)
False
Hair and lint strainers are not required on pressure filtration systems? True or False (Pg 20-36)
False
Turnover rate and flow rate are used in determining pool volume? True or False (Pg 20-36)
False
Circulation systems should be shut down at night when the pool is not in use? True or False (Pg 20-36)
False
A flow meter should be installed on or as close to an elbow in the piping as possible? True or False (Pg 20-36)
False
What are the two types of diatomite filter systems? (Pg 20-36)
Pressure and vacuum
pH is measured on a scale of _____? (Pg 38-45)
0-14
What is neutral pH? (Pg 38-45)
7
What is the ideal pH for a swimming pool? (Pg 38-45)
7.4
If the pH of your pool was 7.2, what would you add? (Pg 38-45)
Soda ash (caustic soda)
The chemical commonly used for testing pH of swimming pools is _______.
(Pg 38-45)
Phenol red
When diluting chemicals, you shoukd add acid before the water. True or false
(Pg 38-45)
False
The ideal range of pH is ______
(Pg 38-45)
7.2 to 7.8
When chlorine is added to water, what is formed?
A) HOCL and HCL
B) hypochlorous acid
C) hydrochloric acid
D) all of the above
(Pg 48-55)
All of the above
Which of the following is an effective bactericide?
A) hydrochloric acid
B) hypochlorous acid
C) chloramines
D) total available chlorine
(Pg 48-55)
Hypochlorous acid
What is formed when hypochlorous acid reacts with nitrogen?
A) chlorophyll
B) HOCL
C) chlorinator
D) chloramine
(Pg 48-55)
Chloramine
What is chlorine gas stored in?
(Pg 48-55)
Cylinders
Calcium hypochlorite comes in what form?
A) gas
B) liquid
C) solid
(Pg 48-55)
Solid
What does Chlorine demand refers to?
(Pg 48-55)
The amount of chlorine that must be added to a pool at any given. Omens to react with all substances in the water
Chlorine gas causes the pH to____
A) increase
B) decrease
(Pg 48-55)
Decrease
Sodium hypochlorite (bleach) causes the pH of water to ____
A) increase
B) decrease
(Pg 48-55)
Increase
Chlorine, bromine, and iodine are classed as ______
A) halogens
b) noble gases
C) alkalides
D) metaloids
(Pg 48-55)
Halogens
The pH of a hot tub should be between __ and __
7.2 and 7.4
Which of the following aerators is NOT typically used in hot tubs?
Forced air, suction air, two-speed, floating surface.
Floating surface
