6 questions Intermediate

ECADEMY test

4 - Wastewater in commercial buildings

This course test contains 6 questions and can be retaken at any time.

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Question 3 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 4 of 6 Intermediate

Which inlet options does the Grundfos MULTILIFT offer?

Question 6 of 6 Intermediate

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Correct
Q: Why is a lifting station an optimal solution for basement refurbishments?
A: 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.
Correct
Q: When is it ideal to use a lifting station as a pressurised system for wastewater removal in commercial buildings?
A: 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.
Correct
Q: Would you recommend drainage around a building if there was soil of permeability and the groundwater level was above drainage level?
A: Yes
Correct
Q: Which inlet options does the Grundfos MULTILIFT offer?
A: DN50-DN150
Correct
Q: What does a Grundfos MULTILIFT protect against?
A: Backflow and basement flooding
Correct
Q: 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: 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.