Question 1 of 6
Intermediate

Where is domestic groundwater extraction typically relevant?

Question 2 of 6
Intermediate

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

Question 3 of 6
Intermediate

How does the integrated dry-running protection work?

Question 4 of 6
Intermediate

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

Question 5 of 6
Intermediate

Why is it important to protect the pump from over- and under voltage?

Question 6 of 6
Intermediate

Is the SQE pump able to provide constant pressure?

Question 6 of 6
Intermediate

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1: Where is domestic groundwater extraction typically relevant?
In big cities.
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1: Where is domestic groundwater extraction typically relevant?
In remote areas where it is too costly to extend the municipal water supply to just a few houses.
1: Where is domestic groundwater extraction typically relevant?
In smaller and medium sized towns.
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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: How does the integrated dry-running protection work?
It automatically restarts 3 minutes after shut down.
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3: How does the integrated dry-running protection work?
It prevents sand from damaging the pump.
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3: How does the integrated dry-running protection work?
It automatically shuts down the pump if water shortage is detected.
4: How long did it take to replace the pump with a Grundfos SQ?
30 minutes
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4: How long did it take to replace the pump with a Grundfos SQ?
60 minutes
4: How long did it take to replace the pump with a Grundfos SQ?
90 minutes
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5: Why is it important to protect the pump from over- and under voltage?
Because large variations in power supply will damage the motor over time.
5: Why is it important to protect the pump from over- and under voltage?
To avoid burning the house fuses.
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5: Why is it important to protect the pump from over- and under voltage?
To minimise the power consumption.
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6: Is the SQE pump able to provide constant pressure?
No.
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6: Is the SQE pump able to provide constant pressure?
Yes.