ᐅ Sewer manhole too far away?

Created on: 10 Aug 2012 06:16
G
gigi
G
gigi
10 Aug 2012 06:16
Hello,

we have purchased a plot of land in a new residential area that runs north to south and measures 16 x 37 meters (north/south 37m (121 feet)). The street is located next to the plot on the east side. We naturally intended to build the house on the northern part of the plot (7 meters (23 feet) from the northern property boundary). Yesterday, we discovered that the water authority has installed the manholes at the very bottom corner of our property by the street. They are supposed to be 1–1.5 meters (3–5 feet) deep. Based on our rough estimates, the sewer pipes would have to be over 30 meters (98 feet) long, as the utility room and bathroom will be located in the northern part of the house. Strangely, both our northern and southern neighbors have their sewer shafts positioned at the northern boundaries of their properties. 😕

Our concerns and questions:
- Could we face problems with the wastewater connection due to the length (pipe slope 1–2%)? We are building a house without a basement.
- Additionally, the street slopes down slightly from south to north by a few centimeters; we want to avoid having to raise the house because of this.
- Isn’t such a long piping system more prone to blockages?
- What are the typical costs per meter for laying wastewater pipes (sewage/stormwater), including the necessary groundwork?
B
Bauexperte
10 Aug 2012 11:02
Hello,
gigi schrieb:

Additionally, the street slopes down a few centimeters from south to north... hopefully we won’t have to raise the house because of that.
I wouldn’t be surprised; you will know for sure once the preliminary site plan is available. It contains all the elevation details—including the sewer lines—and you can cross-reference this information with the requirements specified in the property’s official regulations.
gigi schrieb:
- Isn’t such a long pipe run prone to blockages?
Why would it be? The public sewer network is many times longer :-)
gigi schrieb:
- What is the cost per meter of installing wastewater pipes (wastewater/rainwater) including the necessary groundworks?
This varies by region, so someone who has built in your area would be better able to answer. The good news is that once the public portion is completed—from the street to your property—you are allowed to do the digging yourself; this can save a lot of money over those meters.

Kind regards