Question 1 of 8
Intermediate

What is the purpose of the start level sensor?

Question 2 of 8
Intermediate

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

Question 3 of 8
Intermediate

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

Question 4 of 8
Intermediate

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

Question 5 of 8
Intermediate

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

Question 6 of 8
Intermediate

Can a sewage pump handle all types of wastewater?

Question 7 of 8
Intermediate

What might be the reason a wastewater pump solution requires a big free passage?

Question 8 of 8
Intermediate

What is parallel operation?

Question 8 of 8
Intermediate

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1: 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.
1: 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.
1: What is the purpose of the start level sensor?
It activates the pump when the water reaches this level.
2: What is the main disadvantage of over-dimensioning a wastewater pit?
Unnecessary investment in the larger civil work.
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2: 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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2: What is the main disadvantage of over-dimensioning a wastewater pit?
The wastewater stays in the pit too long, which leads to sedimentation.
3: 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.
3: 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.
3: 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.
4: What makes the S-tube® impeller virtually clog-free?
The excellent hydraulic efficiency and free passage.
4: What makes the S-tube® impeller virtually clog-free?
The big free passage up to 160 mm (6.3”).
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4: 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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5: How far below ground should the manifold – or the discharge pipe – be installed?
It depends on local regulation but typically 1 meter down.
5: 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.
5: 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).
6: 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%.
6: 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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6: Can a sewage pump handle all types of wastewater?
Yes if gravels and stones are max 100 mm (4”).
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7: What might be the reason a wastewater pump solution requires a big free passage?
The big free passage will eliminate blocking of impeller.
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7: What might be the reason a wastewater pump solution requires a big free passage?
The need for high flow and/or a high content of solids.
7: What might be the reason a wastewater pump solution requires a big free passage?
With the big free passage the pump can also pump wastewater contaminated with sand and gravel.
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8: What is parallel operation?
When two or more pump stations are operating at the same time.
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8: What is parallel operation?
When two or more pumps operate side by side simultaneously.
8: What is parallel operation?
When one pump is pumping into another pump and they are operating at the same time.
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