Certified Pool Operator Final Exam 2024 Expected Questions and Answers

Primary job of pool operator - ANSWERS Ensure compliance with local code and laws Provide safe ad clean environment for guests Make sure equipment is properly working RWI stands for - ANSWERS Recreational Water illness How are recreational water illnesses spread - ANSWERS Swallowing water Breathing in mists Coming in contact with contaminated water Recreational Water Illness - ANSWERS illness caused by microorganisms and chloramines in water common illness caused by chloramines - ANSWERS Breathing disorder called swimmers asthma examples of microorganisms that can make you sick in pools - ANSWERS Pseudomonas aeruginosa E.coli Staph Crypto interior walls of pool - ANSWERS pool plaster or white coat what do pool pumps do? - ANSWERS They poll water form the pool main drains and skimmers pool main drain - ANSWERS point of strongest suction in the pool Reasons to close pool immediately - ANSWERS Main drain cover is broken or missing Main drain is not visible due to cloudy water pool telephone not working Skimmers - ANSWERS water from surface passes through skimmers and debris get trapped in skimmer basket Skimmer Weir - ANSWERS prevents floating debris from reentering the pool where does water go after going through the pump? - ANSWERS filter where does water go after the filter? - ANSWERS heater where does water go after heater? - ANSWERS flow meter where does water go after going through flow meter? - ANSWERS back to the pool through the return lines Flow of pool water steps - ANSWERS drains and skimmers/skimmer basket and strainer basket 3. pump r r meter 7. back to pool through return lines what does it mean if bubbles are coming from return line? - ANSWERS Air is coming form somewhere. Check the skimmer strainer basket lid and gasket Flow meter - ANSWERS measures the amount of water passing through pipes Flow meter measurement unit - ANSWERS Gallons per minutes GPM what does it mean if flow meter is showing lower flow than is should? - ANSWERS 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 - ANSWERS 1. Sand Filter 2. Cartridge Filter 3. D.E. Filter Filtration - ANSWERS the physical process of removing suspended particles form pool water how to clean cartridge filter - ANSWERS soak cartridge in degreaser and hose off how to clean a sand filter - ANSWERS backwash Backwash - ANSWERS the process of reverse flow of water through the sand filter to remove accumulated particles when to backwash - ANSWERS when sand filter pressure gauge is higher than usual (spa 8-10 or higher) when can you stop backwashing - ANSWERS when water in sight glass appears to be clear how often should in a sand filter be replaced - ANSWERS every 3-5 years Channeling - ANSWERS 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 - ANSWERS D.E. filter because it can trap particles up to 3-5 microns what happens when dirt accumulates in a filter? - ANSWERS the amount of water that can pass through the filter decreases Labels and Postings - ANSWERS Valves and pumps in the pump room must be labeled and operating instructions must be posted. Pool turnover rate - ANSWERS the amount of time that it takes all of the water in the pool to pass though the filter 3 Types of Pool Algae - ANSWERS Green, Black, Mustard Reasons algae forms in pools - ANSWERS bad water circulation low chlorine level high pH level poor maintenance Black Algae - ANSWERS can penetrate and damage pool plaster Green Algae - ANSWERS primary type of algae found in poorly maintained pools Algecide - ANSWERS they are designed to be used when your pool is clean and algae-free and will stop algae spores from developing into full blooms what is Chlorine used for? - ANSWERS sanitizing the water (killing germs) oxidizing organic matter Types of chlorine - ANSWERS 1.Liquid 2. Powder (granular and tablets) 3. gas Scientific name for Liquid Chlorine - ANSWERS Sodium Hypochlorite Erosion Chlorinator - ANSWERS used for chlorine or bromine tablets Hypochlorinator - ANSWERS used for liquid chlorine Total Chlorine in pool idea levels - ANSWERS 1-3 ppm