Question 1 of 6
Intermediate

What does a Grundfos MULTILIFT protect against?

Question 2 of 6
Intermediate

When is it ideal to use a lifting station as a pressurised system for wastewater removal in commercial buildings?

Question 3 of 6
Intermediate

What are the approaches that can reduce hydrostatic pressure on your building?

Question 4 of 6
Intermediate

Why is a lifting station an optimal solution for basement refurbishments?

Question 5 of 6
Intermediate

Would you recommend drainage around a building if there was soil of permeability and the groundwater level was above drainage level?

Question 6 of 6
Intermediate

Why can it be a challenge to install a pumping pit outside a building when removing grey or black wastewater from below sewage level?

Question 6 of 6
Intermediate

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1: What does a Grundfos MULTILIFT protect against?
Flooding of cooling towers
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1: What does a Grundfos MULTILIFT protect against?
Too high concentration of faecal matters in the wastewater
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1: What does a Grundfos MULTILIFT protect against?
Backflow and basement flooding
2: When is it ideal to use a lifting station as a pressurised system for wastewater removal in commercial buildings?
When sanitary appliances are installed in the basement of an existing building, when space outside the building is limited or when excavation conditions are difficult.
2: When is it ideal to use a lifting station as a pressurised system for wastewater removal in commercial buildings?
When there is a need to remove black and grey wastewater, drainage water and surface water.
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2: When is it ideal to use a lifting station as a pressurised system for wastewater removal in commercial buildings?
When storage of wastewater volumes is required over a longer period of time.
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3: What are the approaches that can reduce hydrostatic pressure on your building?
Constructing a robust foundation, anchoring the building to the underground, or installing a drainage system – or all three in some cases
3: What are the approaches that can reduce hydrostatic pressure on your building?
There is no need to reduce the hydrostatic pressure as it adapts automatically to the weight of the building.
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3: What are the approaches that can reduce hydrostatic pressure on your building?
Using the help of the local water supply company to once a year pump away the rising ground water around the building.
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4: Why is a lifting station an optimal solution for basement refurbishments?
A lifting station is flexible, easy to service, cost effective, provides protection against flooding and is odour free. It can also be connected to the existing drainage pipe easily.
4: Why is a lifting station an optimal solution for basement refurbishments?
A lifting station is a versatile solution that can handle both black and grey wastewater, drainage water and surface water.
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4: Why is a lifting station an optimal solution for basement refurbishments?
The built-in frequency converter makes the lifting station very flexible for fluctuations in the discharge profile of the sanitary appliances.
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5: Would you recommend drainage around a building if there was soil of permeability and the groundwater level was above drainage level?
No
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5: Would you recommend drainage around a building if there was soil of permeability and the groundwater level was above drainage level?
Yes
5: Would you recommend drainage around a building if there was soil of permeability and the groundwater level was above drainage level?
Could be necessary if the groundwater level is expected to rise
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6: Why can it be a challenge to install a pumping pit outside a building when removing grey or black wastewater from below sewage level?
The weight and the shape of the pumping pit depend on the soil conditions, saturation of the soil and the local regulations. This makes planning difficult.
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6: Why can it be a challenge to install a pumping pit outside a building when removing grey or black wastewater from below sewage level?
The pumps in an outside pumping pit cannot be controlled from a Building Management System.
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6: Why can it be a challenge to install a pumping pit outside a building when removing grey or black wastewater from below sewage level?
A pumping pit installation calls for longer planning and installation time, more excavation time and higher excavation costs, as well as a higher initial investment.