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? - ANSf
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 size sand filter would you need to
replace your damaged filter? - ANSfdsd
Which chemical is used to lower the pH value of pool or spa water? - ANS
You have a 25,000 gallon hotel pool with a calcium hardness level of 170 ppm. How much
calcium chloride (77%) would be required to increase this to 250 PPM? - ANS
The daily opening checklist should be used to: - ANS
Evaporation heat losses from a pool are highest under which environmental condition? - ANS
How much sodium thiosulfate would you need to lower the free chlorine from 18 ppm to 2.0 ppm
in an 150,000 gallon pool? - ANS
When should you backwash high rate sand filters that have a single pressure gauge? - ANS
Oxidation Reduction Potential testing (ORP) is measured in: - ANS
The reagent commonly used to test pH is: - ANS
What condition mandates an immediate closure of your swimming pool? - ANS
When mechanical cooling is used on an indoor therapeutic pool facility, the recommended
ASHRAE fresh air exchange rate should be: - ANS
The Occupational Safety and Health Administration (OSHA) requires aquatic facilities to
maintain: - ANS
An erosion chemical feeder is what type of feeder? - ANS
Cyanuric acid (stabilizer) protects free chlorine (FC) against effects of: - ANS
Which type of filter requires the least amount of water to clean? - ANS
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Ashley96. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.