Backwash Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about Backwash? On this page you'll find 408 study documents about Backwash.
All 408 results
Sort by
-
Economic Transition - Advanced Human Geography CIE A-Level (9696)
- Summary • 36 pages • 2023
- Available in package deal
-
- $27.04
- 4x sold
- + learn more
CIE Geography (9696), This summary covers Economic Transition, which is chapter 14 in the A-Level Advanced Human Geography A-Level syllabus. 
The topics covered in the summary: 
 
National development 
 
The nature of the primary, secondary, tertiary and quaternary sectors and their roles in economic development 
The nature, causes and distribution of global inequalities in social and economic wellbeing 
The measures and indices of social and economic inequality 
The globalisation of economic a...
-
Class C water license Florida Study Guide Exam Verified Answers 2024.
- Exam (elaborations) • 4 pages • 2024 Popular
- Available in package deal
-
- $9.39
- 2x sold
- + learn more
true - Answer Is chlorine heavier then air 
 
you contact the fire department in the event of this - Answer who do you call when you have a chlorine leak 
 
ammonia soaked rag or swab held near the suspected area - Answer what is best to use when looking for a chlorine leak 
 
milk - Answer in case of exposure to chlorine what is best to consume 
 
Hydroflouric Acid - Answer what is very strong acid 
 
short circuit - Answer what you get when you don't have good mixing 
 
permanent h...
-
Florida State Service and Repair Pool Contractor Practice Exam # 1 Exam | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+
- Exam (elaborations) • 12 pages • 2024
-
- $10.99
- 1x sold
- + learn more
Florida State Service and Repair Pool 
Contractor Practice Exam # 1 Exam | 
Questions & 100% Correct Answers 
(Verified) | Latest Update | Grade A+ 
1. In a Public Swimming Pool backwash or pool draining water has to go through what before 
itgoes into the sanitary sewer line? 
Correct Answer: Air Gap 
2. In a therapy spa what is the maximum temperature at the heater return outlet? 
Correct Answer: 122 degrees 
3. When testing for the disinfection efficacy of process equipment the recommend...
-
2024 update DC Third testing Questions and Answers 100% Pass
- Exam (elaborations) • 31 pages • 2024
-
- $13.49
- 1x sold
- + learn more
2024 update DC Third testing Questions and 
Answers 100% Pass 
The component in which liquid vapor by absorbing heat is called? - Correct Answer ️️ - 
Evaporator 
Select the best answer electrical grounding method? - Correct Answer ️️ -Metal stake 
drive 8 foot into the ground. 
A _____ valve should be used for throttling purpose? - Correct Answer ️️ -Globe 
What is the acceptable range for residual sodium sulfite in the boiler maintain? - Correct 
Answer ️️ -30-70 
What is the B...
-
Certified Pool Operator Study Guide (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A
- Exam (elaborations) • 21 pages • 2024
- Available in package deal
-
- $10.99
- + learn more
Certified Pool Operator Study Guide (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A 
 
Q: Skimmer Weir 
prevents floating debris from reentering the pool 
 
 
 
Q: where does water go after going through the pump? 
 
 
Answer: 
filter 
 
 
 
Q: where does water go after the filter? 
 
 
Answer: 
heater 
 
 
 
Q: where does water go after heater? 
 
 
Answer: 
flow meter 
 
 
 
Q: where does water go after going through flow meter? 
 
 
Answer: 
back to the pool th...
Make study stress less painful
-
Pool Operator's Final Exam questions & answers 2023
- Exam (elaborations) • 5 pages • 2023
- Available in package deal
-
- $18.99
- 2x sold
- + learn more
Pool Operator's Final Exam questions & answers 2023The percentage of hypoclorous acid formation is most influenced by: 
pH 
 
 
 
Pool painting is usually done: 
Before opening in the spring 
 
 
 
 
 
 
00:10 
 
01:20 
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: 
Centri...
-
Pool Operators Exam 2023 with 100% correct answers
- Exam (elaborations) • 9 pages • 2023
-
- $13.49
- 1x sold
- + learn more
Surface Area 
Length x Width (square/rectangle) 
pi(r)^2 (circle) 
 
 
 
Maximum facility load (bather load) 
Surface area/27 
 
 
 
Volume 
Surface Area x average depth x 7.5 
 
 
 
Turnover (main, wading, spa) 
6 hours, 2 hours, 15 minutes 
 
 
 
Minimum flow rate 
Volume/turnover/60 
 
 
 
Maximum flow rate is based on? 
Filter specifications 
 
 
 
Components of Swimming Pool Recirculation and Filtration 
Pump, Piping, Filter 
 
 
 
Another name for a filter data sheet? 
Placard 
 
 
 
Hi-ra...
-
Pool and Hot tub CPO practice 2023 with Complete Solutions
- Exam (elaborations) • 2 pages • 2023
-
- $9.99
- 2x sold
- + learn more
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? - ANSWER-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 size san...
-
Swimming pool operator certification| 103 QUESTIONS| WITH COMPLETE SOLUTIONS
- Exam (elaborations) • 9 pages • 2022
- Available in package deal
-
- $12.49
- 1x sold
- + learn more
First step of fecal accident procedure Correct Answer: Direct all bathers to leave the pool. All affected waters must be closed to swimming until proper procedures for contamination have been completed 
 
Second step of fecal accident procedure Correct Answer: Manually remove as much of the material as possible using a net or scoop and dispose of it in a sanitary manner. Clean and disinfect the scoop or net. After cleaning leave the net or scoop immersed in the pool during this infection. Vacu...
-
Pool Operator's Final Exam: Questions & Answers: Updated A Plus Guide
- Exam (elaborations) • 8 pages • 2024
- Available in package deal
-
- $7.99
- + learn more
The percentage of hypochlorous acid formation is most influenced by: (Ans- pH 
 
Pool painting is usually done: 
 (Ans- Before opening in the spring 
 
When a pool is chlorinated with gas chlorine, the operator must also use: (Ans- Soda Ash 
 
The term "chlorine demand" refers to: 
(Ans- The amount of chlorine which will react with substances in the pool 
 
Re-circulation pumps used in swimming pools are the type called: 
(Ans- Centrifugal pumps 
 
Reversing the flow of water through the fil...
Study stress? For sellers on Stuvia, these are actually golden times. KA-CHING! Earn from your study resources too and start uploading now. Discover all about earning on Stuvia