Question 1 of 6
Intermediate

What happens if the water level in the well drops below the inlet?

Question 2 of 6
Intermediate

The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?

Question 3 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 4 of 6
Intermediate

By how much does the supply voltage decrease before the motor contactor stops the pump?

Question 5 of 6
Intermediate

Which protection features does the SQE have?

Question 6 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 6 of 6
Intermediate

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1: What happens if the water level in the well drops below the inlet?
The motor power consumption drops
1: What happens if the water level in the well drops below the inlet?
The motor power consumption stays the same
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1: What happens if the water level in the well drops below the inlet?
The motor power consumption increases
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2: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In wells with water temperature up to 60° C.
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2: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In installations that require constant pressure.
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2: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In original 4” boreholes where sediments over the years have narrowed the hole.
3: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
3: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
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3: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
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4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 10 %
4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 15 %
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4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 20 %
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5: Which protection features does the SQE have?
Voltage handling, soft start, dry-running protection and overload protection.
5: Which protection features does the SQE have?
Protection against the well running dry.
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5: Which protection features does the SQE have?
The SQE does not have any protection features.
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6: 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.
6: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
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6: 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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