Question 1 of 6
Intermediate

How long did it take to replace the pump with a Grundfos SQ?

Question 2 of 6
Intermediate

What is the most commonly used starting method for motors in 4” conventional pumps?

Question 3 of 6
Intermediate

What happens if the static water level is too low?

Question 4 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 5 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 6 of 6
Intermediate

What is the benefit of a slow increase in speed?

Question 6 of 6
Intermediate

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1: How long did it take to replace the pump with a Grundfos SQ?
30 minutes
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1: How long did it take to replace the pump with a Grundfos SQ?
60 minutes
1: How long did it take to replace the pump with a Grundfos SQ?
90 minutes
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2: What is the most commonly used starting method for motors in 4” conventional pumps?
Direct on line
2: What is the most commonly used starting method for motors in 4” conventional pumps?
Star delta starters
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2: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
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3: What happens if the static water level is too low?
The pump overheats
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3: What happens if the static water level is too low?
The water level is brought down below the inlet of the pump
3: What happens if the static water level is too low?
The motor shuts down
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4: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
4: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
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4: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
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5: Why is correct sizing of the submersible pump important?
Because an undersized pump will not be able to deliver the required flow and pressure and an oversized pump reduces energy efficiency, which increases operational costs.
5: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
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5: Why is correct sizing of the submersible pump important?
Because too big a pump will ruin the taps due to too high pressure.
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6: What is the benefit of a slow increase in speed?
It keeps the motor current low
6: What is the benefit of a slow increase in speed?
It keeps pump movements at a minimum
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6: What is the benefit of a slow increase in speed?
It removes the need for motor contactors
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