Question 1 of 4
Intermediate

What happens if there is no backflow prevention valve, or if one is installed below sewage level?

Question 2 of 4
Intermediate

According to the European standard EN12056-4, what is the safest way to protect a building from sewer backflow?

Question 3 of 4
Intermediate

Which of the following is not a cause of water hammering noises in pipe systems?

Question 4 of 4
Intermediate

Why can bad odours occur in wastewater systems?

Question 4 of 4
Intermediate

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1: What happens if there is no backflow prevention valve, or if one is installed below sewage level?
Flooded basements
1: What happens if there is no backflow prevention valve, or if one is installed below sewage level?
Lower water pressure
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1: What happens if there is no backflow prevention valve, or if one is installed below sewage level?
Toilets fill faster
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2: According to the European standard EN12056-4, what is the safest way to protect a building from sewer backflow?
Physcial barriers
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2: According to the European standard EN12056-4, what is the safest way to protect a building from sewer backflow?
Lifting stations
2: According to the European standard EN12056-4, what is the safest way to protect a building from sewer backflow?
Larger pipes
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3: Which of the following is not a cause of water hammering noises in pipe systems?
Old, outdated pump technology
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3: Which of the following is not a cause of water hammering noises in pipe systems?
Incorrect installation
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3: Which of the following is not a cause of water hammering noises in pipe systems?
Oversized piping
4: Why can bad odours occur in wastewater systems?
Open pump sumps
4: Why can bad odours occur in wastewater systems?
Undersized tanks
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4: Why can bad odours occur in wastewater systems?
Oversized piping
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