Question 1 of 8
Intermediate

Why is it a good idea to make a well where the groundwater level is as high as possible?

Question 2 of 8
Intermediate

In which areas is there a bigger risk of pumping corrosive groundwater?

Question 3 of 8
Intermediate

What should the minimum flow past the motor be to ensure sufficient motor cooling?

Question 4 of 8
Intermediate

What can be done to the well if sand continues to enter a well after the well development has been carried out?

Question 5 of 8
Intermediate

Why is it important to know the water drawdown?

Question 6 of 8
Intermediate

What kind of riser pipe is most likely to keep itself free from scaling?

Question 7 of 8
Intermediate

What could be the consequences of using an undersized pump in a well?

Question 8 of 8
Intermediate

What is the most effective way to stay updated on your pump’s condition?

Question 8 of 8
Intermediate

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1: Why is it a good idea to make a well where the groundwater level is as high as possible?
The shorter the distance is to the water the less expensive it is to make the borehole and subsequently to pump the water to the surface
1: Why is it a good idea to make a well where the groundwater level is as high as possible?
The shorter the distance is from the surface to the ground water, the better the water quality is
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1: Why is it a good idea to make a well where the groundwater level is as high as possible?
A higher level means lower water temperatures and better motor cooling
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2: In which areas is there a bigger risk of pumping corrosive groundwater?
In forests with old trees
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2: In which areas is there a bigger risk of pumping corrosive groundwater?
In coastal areas
2: In which areas is there a bigger risk of pumping corrosive groundwater?
In elevations above 1000 m
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3: What should the minimum flow past the motor be to ensure sufficient motor cooling?
0,5 m/s
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3: What should the minimum flow past the motor be to ensure sufficient motor cooling?
0,15 m/s
3: What should the minimum flow past the motor be to ensure sufficient motor cooling?
There are no specific requirements
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4: What can be done to the well if sand continues to enter a well after the well development has been carried out?
The well driller can try to run the pump at its maximum capacity in short periods of time over a couple of days
4: What can be done to the well if sand continues to enter a well after the well development has been carried out?
The well driller can replace the casing with a new one with smaller slots
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4: What can be done to the well if sand continues to enter a well after the well development has been carried out?
An additional filter can be installed inside the casing
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5: Why is it important to know the water drawdown?
The more the drawdown increases during pump operation, the more pressure is required to lift the groundwater to the surface
5: Why is it important to know the water drawdown?
Increased drawdown leads to poor water quality
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5: Why is it important to know the water drawdown?
Steel casings may not be used if the drawdown is too big
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6: What kind of riser pipe is most likely to keep itself free from scaling?
Plastic hoses
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6: What kind of riser pipe is most likely to keep itself free from scaling?
Stainless steel pipes
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6: What kind of riser pipe is most likely to keep itself free from scaling?
Flex hoses
7: What could be the consequences of using an undersized pump in a well?
The pump will give too high pressure
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7: What could be the consequences of using an undersized pump in a well?
The risk of cavitation is very high
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7: What could be the consequences of using an undersized pump in a well?
The pump may not be able to deliver the required capacity
8: What is the most effective way to stay updated on your pump’s condition?
Manual inspection
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8: What is the most effective way to stay updated on your pump’s condition?
Remote online monitoring
8: What is the most effective way to stay updated on your pump’s condition?
Regular maintenance
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