Drainage on the property

Hello everyone,

we are currently planning our drainage system. The drainage plan for the new development area notes the following:

The street surfaces, paths, and properties are connected to the stormwater sewer via connection pipes DN 150. In the area of the properties, house transfer shafts DN 1000 are installed about 1.00 m behind the boundaries to separate the public and private pipes.

The private pipes are produced with nominal diameters of ≥ DN 100 according to the hydraulically required diameters. The construction of inspection shafts for the household and collector pipes on the properties is done using plastic system shafts DN 400.

Are we now obliged to install DN 1000 reinforced concrete shafts, or would plastic shafts also be possible? Maybe someone has more knowledge about this :)

Regards ;-)

It says there: On the properties with plastic system shafts DN 400

... house handover shafts DN 1000 for the separation of public and private pipes installed. ...

should be recognizable at the (in case of combined sewage) or at two "manhole covers" (in case of rainwater and wastewater separation) located on your property after development (with the statement "behind the boundaries" I assume it means towards the property, i.e. on your property) Whether additional inspection shafts (DN400) are necessary is only determined in your individual drainage planning, isn’t it? I don’t see any obligation ...

Hi!

We would be responsible for the inspection shafts ourselves. Only the pipes are being extended onto our property by 1 meter each. I just find it confusing whether we now have to have the DN1000 precast concrete parts installed or if the DN400 plastic ones are also acceptable...