Backwash - Study guides, Class notes & Summaries

To be a pool operator you must - ANSWER-Complete a pool operator training course To prevent spinal injury - ANSWER-All of the above The strong suction in the pool (ENTRAPMENT) is the - ANSWER-Main Drain Electrical systems in the pool must have - ANSWER-GFIs (Ground Fault Circuit Interrupters?) The skimmer _____ prevents floating debris from re-entering the pool - ANSWER-WEIR What is filtration? - ANSWER-Physical process of water moving through the system What is the turnover ra...

You are the operator for a pool which is 164 feet long and 80 feet wide. The pool bottom has a constant slope which is 4 feet deep at the shallow end, and 10 feet deep at the deep end. What is the volume of this pool in gallons? - CORRECT ANS f You operate a pool which uses high rate sand filters. You discover that your filter tank has developed a major leak and must be replaced. Your pool operates with a flow rate of 525 GPM. Using a filter media rate (fmr) of 15 gallons per minute, what ...

AFO (Aquatics Facilitator Operator) Glossary Exam Questions And Answers Acid - ANS A commonly use chemical compound dosed into swimming pools that releases hydrogen ions in water thereby lowering pH Algae - ANS a simple nuisance plant life that colonizes in water under favorable conditions Alkalinity - ANS A measure of the pH-buffering capacity of water Aluminum Sulfate - ANS Alum; a flocculating agent frequently used as a supplement in rapid sand filters only! Ammonia (N...

wave form correct answers Wind blowing over the sea. Friction with water surface causes ripples that develop into waves. The longer the fetch the more powerful the wave. fetch correct answers The distance the wind blows across the water swash correct answers The wave breaks onto the beach and moves up it backwash correct answers Water rolling back from the beach due to gravity prevailing wind correct answers A wind coming from the predominant direction constructive wave correct an...

Fetch correct answers The distance that the wind has traveled across open water wave form correct answers water particles rotate in a circular/ellipitcal movement as water masses through wave crest correct answers Highest point of a wave wave trough correct answers Lowest point of a wave wave height correct answers the vertical distance from the crest of a wave to the trough wave length correct answers the distance from any point on a wave to an identical point on the next wave ...

Crystal Aquatics Pool Operator Test Questions With Verified Answers. Alkalinity - answerIdeal 80-120 ppm Total alkalinity is water's ability to resist pH changes If high, add muriatic acid If high, water scales: clouds water, blocks filters, white film If high, pH drifts upward If low, add sodium bicarbonate If low, water is corrosive: stains surfaces, pits concrete, dissolves metal If low, pH bounces and is difficult to maintain Backwashing - answerThe process of reversing filtration...

1. In a Public Swimming Pool backwash or pool draining water has to go through what before itgoes into the sanitary sewer line? o :## Air Gap 2. In a therapy spa what is the maximum temperature at the heater return outlet? o :## 122 degrees 3. When testing for the disinfection efficacy of process equipment the recommended ph of thepool water should be: o :## 7.2 - 7.6 4. What type of filter precedes the pump? o :## vacuum E. 5. In a public spa, what is considered "neutral PH if the ...

Globe Valve - Answer A valve that should be used for throttling is a? 30-70 - Answer what is the acceptable range for residual sodium sulfite in the boiler maintain? 146,000 - Answer what is the BTU content of a Gallon of #4? Brine - Answer what does a zeolite water softener system use as a means of regeneration? Backwash, - Answer what are the steps for a Zeolite rejuvenation water softener process? Condenser - Answer Where is medium temperature liquid found in a refr...

Pool Operator's Final Exam Questions with Verified Answers The percentage of hypoclorous acid formation is most influenced by: pH Pool painting is usually done: Before opening in the spring When a pool is chlorinated with gas chlorine, the operator must also use: Soda Ash The term "chlorine demand" refers to: The amount of chlorine which will react with substances in the pool Re-circulation pumps used in swimming pools are the type called: Centrifugal pumps Reversing the...

TCEQ Surface Water B License Pt.2 Latest Exam With Verified Answers What is the purpose of nonionic polymers? - Correct Answer Filter aids Where do humic and fulvic acids come from? - Correct Answer Natural Organic Matter (NOM) decay What can chlorine oxidize? - Correct Answer Iron, manganese, and microorganisms At what pH range does iron react best? - Correct Answer 7.5-8.0 At what pH range does manganese oxidation occur best? - Correct Answer 9.0-10.0 What is required...