Is a lifting system necessary? Basement with a granny flat.

  • Erstellt am 2020-04-23 22:27:48

sebisanu

2020-04-23 22:27:48
  • #1
Hello everyone,

I am still not convinced whether I need a lifting station. There are several reasons why I am unsure:

- Statement from the construction manager: "if there is a granny flat in the basement, then it is mandatory." I find this a bit too general, but he could be right (We are building in Baden-Württemberg). Do you know such a law/directive/etc.?
- The toilet in the basement is 1m higher than the sewer height in the inspection chamber
- we live at the very top of a hill and if the water is already standing on our street, then several villages are already flooded. So that is excluded.

How do you see it? What experiences do you have? Maybe someone from BW with a granny flat in the basement?

Thanks to you all and stay healthy!
 

Vicky Pedia

2020-04-24 07:43:31
  • #2
The purpose of a lifting station is to convey wastewater that lies below the drainage level into the sewer. In areas with the risk of backflow, it also serves as backflow protection. With a 1m height difference at the top of the hill, I see no necessity. Also not legally required. If really mandated, it will be stated in the building permit.
 

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