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

What happens if the static water level is too low?

Question 3 of 6
Intermediate

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

Question 4 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 5 of 6
Intermediate

In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?

Question 6 of 6
Intermediate

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

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: What happens if the static water level is too low?
The pump overheats
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2: What happens if the static water level is too low?
The water level is brought down below the inlet of the pump
2: What happens if the static water level is too low?
The motor shuts down
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3: How long did it take to replace the pump with a Grundfos SQ?
30 minutes
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3: How long did it take to replace the pump with a Grundfos SQ?
60 minutes
3: How long did it take to replace the pump with a Grundfos SQ?
90 minutes
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4: 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.
4: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
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4: 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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5: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Soft start reduces over-pressure in your piping.
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5: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
It reduces the occurrence of water hammer in the pipes and minimises wear during start-up.
5: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Soft start prevents the motor from getting warm.
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6: 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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6: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
6: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
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