In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Why is correct sizing of the submersible pump important?
How long did it take to replace the pump with a Grundfos SQ?
Why is it important to protect the pump from over- and under voltage?
What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Test results
Q: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
A: Soft start reduces over-pressure in your piping.
Q: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
A: It reduces the occurrence of water hammer in the pipes and minimises wear during start-up.
Q: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
A: Soft start prevents the motor from getting warm.
Q: Why is correct sizing of the submersible pump important?
A: 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.
Q: Why is correct sizing of the submersible pump important?
A: Because too small a pump will pump the well dry.
Q: Why is correct sizing of the submersible pump important?
A: Because too big a pump will ruin the taps due to too high pressure.
Q: Is the SQE pump able to provide constant pressure?
A: No.
Q: Is the SQE pump able to provide constant pressure?
A: Yes.
Q: How long did it take to replace the pump with a Grundfos SQ?
A: 30 minutes
Q: How long did it take to replace the pump with a Grundfos SQ?
A: 60 minutes
Q: How long did it take to replace the pump with a Grundfos SQ?
A: 90 minutes
Q: Why is it important to protect the pump from over- and under voltage?
A: Because large variations in power supply will damage the motor over time.
Q: Why is it important to protect the pump from over- and under voltage?
A: To avoid burning the house fuses.
Q: Why is it important to protect the pump from over- and under voltage?
A: To minimise the power consumption.
Q: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
A: Between 100 V and 250 V
Q: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
A: Between 150 V and 315 V
Q: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
A: Between 230 V and 400 V