QUESTIONS AND ANSWERS RATED A+
✔✔If there is no diving allowed the sign NO DIVING needs to be posted where? -
✔✔Every 20 feet
✔✔Commercial swimming pools and spas are regulated by - ✔✔ASPIINSPA
✔✔Resistance is caused by what? - ✔✔Friction and Head Loss
✔✔Handrails are anchored to what two places? - ✔✔Pool deck and bottom step
✔✔To clean a cartridge filter you must do what - ✔✔Soak it in degreaser and hose it off
✔✔Why is bromine used? - ✔✔It is more stable at high temperatures
✔✔Cyanuric acid is commonly called? - ✔✔Stabilizer
✔✔How fast does Chlorine kill bacteria when added to a pool? - ✔✔Immediately
✔✔Chlorine in a natural state is what? - ✔✔Green colored gas
✔✔Pressure differential should never exceed what - ✔✔10 P.S.I.
✔✔What is the most difficult algae to control and it often needs superchlorination and
brushing - ✔✔Black Algae
✔✔What does a sequestering agent do? - ✔✔Prevent precipitation of minerals on the
surface of the pool
✔✔Cloudy water (turbid water) may be caused by what - ✔✔Poor filtration/circulation,
unbalanced water (on the scaling side), algae bloom (in this case the pool's surface is
slippery), heavy bather load, and suspended solids
✔✔A shepherd's hook must be on a what? - ✔✔16 foot fixed pole (not telescopic)
✔✔What is an aid for removing small particles from the pool - ✔✔Flocculent
✔✔Sunlight, hot weather, and high bather load contribute to what? - ✔✔Accelerated
growth of algae
✔✔Sodium hypochlorite (liquid chlorine) deteriorates quickly in what conditions? -
✔✔Heat, sunlight and contamination
, ✔✔Microorganisms can be shielded from disinfectants if they are in suspended
particles. This caused by what? - ✔✔High Turbidity levels
✔✔When you are handling pool chemicals you must wear what equipment? -
✔✔Googles, apron, and gloves
✔✔Bubbles in the water mean what? - ✔✔Air in the filter
✔✔Cyanuric acid is commonly called - ✔✔Stabilizer
✔✔If the filter is full of dirt then what increases and what decreases? - ✔✔Influent
pressure INCREASES and Effluent pressure DECREASES
✔✔***know the difference between surface area and volume - ✔✔read through***
✔✔When testing pH, what does it mean if the sample is yellow? - ✔✔pH is too low
✔✔Which of the following is not a primary job of a pool operator? - ✔✔Ensuring the
patrons have fun at the pool
✔✔An acceptable level of of free chlorine (good chlorine) at a spa is what? - ✔✔4.0
ppm
✔✔The strongest point of suction that can lead to entrapment and drowning in a pool is
where? - ✔✔Main Drain
✔✔You test the pool and observe that calcium hardness is too high. What chemical
should you add to lower the calcium hardness? - ✔✔YOU DO NOT NEED TO ADD
CHEMICALS.
You must drain the pool and replace it with fresh water to lower the calcium hardness.
✔✔The pool operator is responsible for maintaining what? - ✔✔The daily pool operation
log
✔✔What does channeling mean when discussing swimming pool filtration? - ✔✔A
damaging condition that occurs over time in a sand filter
✔✔You arrive at the pool and the phone isn't working. What do you do? - ✔✔Keep the
pool closed until the telephone is repaired and working
✔✔The chemical we cal dry chlorine is - ✔✔Calcium Hypochlorite