Question 1 of 8
Intermediate

What is the main disadvantage of over-dimensioning a wastewater pit?

Question 2 of 8
Intermediate

How far below ground should the manifold – or the discharge pipe – be installed?

Question 3 of 8
Intermediate

Can a sewage pump handle all types of wastewater?

Question 4 of 8
Intermediate

What is drainage water?

Question 5 of 8
Intermediate

What are the benefits of a pumping station with a separate valve chamber?

Question 6 of 8
Intermediate

What is one of the main challenges facing utility companies today in relation to transportation of wastewater?

Question 7 of 8
Intermediate

What is the purpose of the start level sensor?

Question 8 of 8
Intermediate

What makes the S-tube® impeller virtually clog-free?

Question 8 of 8
Intermediate

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1: What is the main disadvantage of over-dimensioning a wastewater pit?
Unnecessary investment in the larger civil work.
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1: What is the main disadvantage of over-dimensioning a wastewater pit?
Too big distance between the pumps with two or more pumps installed.
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1: What is the main disadvantage of over-dimensioning a wastewater pit?
The wastewater stays in the pit too long, which leads to sedimentation.
2: How far below ground should the manifold – or the discharge pipe – be installed?
It depends on local regulation but typically 1 meter down.
2: How far below ground should the manifold – or the discharge pipe – be installed?
Deep enough not to be damaged by roots from trees and bushes.
2: How far below ground should the manifold – or the discharge pipe – be installed?
Not deeper than gravity to the recipient can be established with a gradient of 1 cm per meter. (0.032 ft per 3.28 ft).
3: Can a sewage pump handle all types of wastewater?
Yes if the pH value is within 4 – 9 and max. dry content 3 to 5%.
3: Can a sewage pump handle all types of wastewater?
Yes with solids up to 100 mm (4”) and max. dry content 3 to 5%.
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3: Can a sewage pump handle all types of wastewater?
Yes if gravels and stones are max 100 mm (4”).
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4: What is drainage water?
Wastewater from parking areas, sidewalks and alike after a rainy weather.
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4: What is drainage water?
Wastewater without toilet waste or impurities like paper, diapers and textile fibres.
4: What is drainage water?
Slightly polluted water from a bathroom where the water is running to the drain.
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5: What are the benefits of a pumping station with a separate valve chamber?
It allows service and maintenance on the valves to be carried out without human interaction with the pit itself.
5: What are the benefits of a pumping station with a separate valve chamber?
The pump station do not need to be that deep, because now the valves are not in the chamber with the wastewater.
5: What are the benefits of a pumping station with a separate valve chamber?
There is no need for an intermediate deck in the pump station for the people there shall service or maintain the valves.
6: What is one of the main challenges facing utility companies today in relation to transportation of wastewater?
The wastewater is increasing more and more due to leakage in the discharge pipes and thereby infiltration of ground water.
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6: What is one of the main challenges facing utility companies today in relation to transportation of wastewater?
Lower water consumption has changed the composition of wastewater, which now has a higher proportion of dry solid content than before.
6: What is one of the main challenges facing utility companies today in relation to transportation of wastewater?
The wastewater pumps need bigger motors because the discharge pipes from the pump stations are getting longer in order to avoid an additional intermediate pump station.
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7: What is the purpose of the start level sensor?
It will send an alarm when the water reaches this level and the pump do not start.
7: What is the purpose of the start level sensor?
It will stop the pump when the water level is lowered to below this level after a pump start.
7: What is the purpose of the start level sensor?
It activates the pump when the water reaches this level.
8: What makes the S-tube® impeller virtually clog-free?
The excellent hydraulic efficiency and free passage.
8: What makes the S-tube® impeller virtually clog-free?
The big free passage up to 160 mm (6.3”).
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8: What makes the S-tube® impeller virtually clog-free?
The S-tube® impeller has either a SmartTrim function or a replaceable neck ring to secure the right impeller clearance.
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