Question 1 of 6
Intermediate

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

Question 2 of 6
Intermediate

Which of these isn’t a key dry-run protection benefit for the installer?

Question 3 of 6
Intermediate

What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?

Question 4 of 6
Intermediate

Why must the pump unit be installed below the dynamic water table?

Question 5 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 6 of 6
Intermediate

Where is domestic groundwater extraction typically relevant?

Question 6 of 6
Intermediate

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1: 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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1: 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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1: 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.
2: Which of these isn’t a key dry-run protection benefit for the installer?
The installer can avoid costly callbacks
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2: Which of these isn’t a key dry-run protection benefit for the installer?
The installer doesn’t have to worry about additional components
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2: Which of these isn’t a key dry-run protection benefit for the installer?
The installer doesn’t have to worry about water bursts
3: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 100 V and 250 V
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3: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 150 V and 315 V
3: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 230 V and 400 V
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4: Why must the pump unit be installed below the dynamic water table?
So you are sure to minimise your power bill.
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4: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
4: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
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5: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
5: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
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5: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
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6: Where is domestic groundwater extraction typically relevant?
In big cities.
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6: 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.
6: Where is domestic groundwater extraction typically relevant?
In smaller and medium sized towns.
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