Certified Pool Operator Questions and
Answers 100% Correct
what does it mean if flow meter is showing lower flow than is should? Correct
Answ_Usually means the filter needs to be cleaned or there is too much debris in the strainer
basket or skimmer basket
3 Types of Filters Correct Answ_1. Sand Filter
2. Cartridge Filter
3. D.E. Filter
Filtration Correct Answ_the physical process of removing suspended particles form pool
water
how to clean cartridge filter Correct Answ_soak cartridge in degreaser and hose off
how to clean a sand filter Correct Answ_backwash
,Backwash Correct Answ_the process of reverse flow of water through the sand filter to
remove accumulated particles
when to backwash Correct Answ_when sand filter pressure gauge is higher than usual (spa
8-10 or higher)
when can you stop backwashing Correct Answ_when water in sight glass appears to be clear
how often should in a sand filter be replaced Correct Answ_every 3-5 years
Channeling Correct Answ_a damaging condition that occurs over time in sand filters. When
sand becomes hard, water goes around sand and unfiltered water returns to the pool
most efficient type of filter and why Correct Answ_D.E. filter because it can trap particles up
to 3-5 microns
what happens when dirt accumulates in a filter? Correct Answ_the amount of water that can
pass through the filter decreases
, Labels and Postings Correct Answ_Valves and pumps in the pump room must be labeled and
operating instructions must be posted.
Pool turnover rate Correct Answ_the amount of time that it takes all of the water in the pool
to pass though the filter
3 Types of Pool Algae Correct Answ_Green, Black, Mustard
Reasons algae forms in pools Correct Answ_bad water circulation
low chlorine level
high pH level
poor maintenance
Black Algae Correct Answ_can penetrate and damage pool plaster
Green Algae Correct Answ_primary type of algae found in poorly maintained pools
Answers 100% Correct
what does it mean if flow meter is showing lower flow than is should? Correct
Answ_Usually means the filter needs to be cleaned or there is too much debris in the strainer
basket or skimmer basket
3 Types of Filters Correct Answ_1. Sand Filter
2. Cartridge Filter
3. D.E. Filter
Filtration Correct Answ_the physical process of removing suspended particles form pool
water
how to clean cartridge filter Correct Answ_soak cartridge in degreaser and hose off
how to clean a sand filter Correct Answ_backwash
,Backwash Correct Answ_the process of reverse flow of water through the sand filter to
remove accumulated particles
when to backwash Correct Answ_when sand filter pressure gauge is higher than usual (spa
8-10 or higher)
when can you stop backwashing Correct Answ_when water in sight glass appears to be clear
how often should in a sand filter be replaced Correct Answ_every 3-5 years
Channeling Correct Answ_a damaging condition that occurs over time in sand filters. When
sand becomes hard, water goes around sand and unfiltered water returns to the pool
most efficient type of filter and why Correct Answ_D.E. filter because it can trap particles up
to 3-5 microns
what happens when dirt accumulates in a filter? Correct Answ_the amount of water that can
pass through the filter decreases
, Labels and Postings Correct Answ_Valves and pumps in the pump room must be labeled and
operating instructions must be posted.
Pool turnover rate Correct Answ_the amount of time that it takes all of the water in the pool
to pass though the filter
3 Types of Pool Algae Correct Answ_Green, Black, Mustard
Reasons algae forms in pools Correct Answ_bad water circulation
low chlorine level
high pH level
poor maintenance
Black Algae Correct Answ_can penetrate and damage pool plaster
Green Algae Correct Answ_primary type of algae found in poorly maintained pools
