ᐅ Insufficient slope in the wastewater pipe

Created on: 22 Sep 2020 09:12
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NicolasH
Hello everyone,

Here is the situation:
Shortly before completing our house, it was discovered that the wastewater pipe coming from the foundation slab was installed too low, and the slope toward the sewer connection is insufficient. We reported this issue and requested a correction. The defect was noted in the acceptance report and has since been resolved.

Now, the construction company is asking us to cover the costs because the wastewater inspection chamber was not in place before the foundation slab was built, so the reference point was missing. However, we were never informed about this. In my opinion, the sewer connection could also have served as a reference point. We were also never warned about the possibility of having to bear these costs ourselves.
What are your thoughts on this matter?
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NicolasH
22 Sep 2020 10:32
The general contractor or their subcontractors routed the wastewater pipe through the foundation slab, and this pipe now had to be modified.
M
matte
22 Sep 2020 10:38
Then I would just refer to the general contractor. It's not your concern if the subcontractor hired by the general contractor does a poor job. That’s exactly why you work with a general contractor—to have everything handled by one party.
Musketier22 Sep 2020 10:40
Was the pipe installed before or after the shaft was constructed?
Were elevation levels shown in the municipal documents that were later changed?
OWLer22 Sep 2020 10:42
Was the height of the ducts carried out by the city as planned?
In our area, it was an issue where some neighbors had to pay additional charges. The original plan had been changed.
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NicolasH
22 Sep 2020 10:43
The municipality's conduit was already in place, and there have been no changes to the plans.
The manhole and the pipe were installed simultaneously.
Musketier22 Sep 2020 10:49
Then I don’t understand the problem. It should have been possible to identify earlier that the heights didn’t match.
At first, I thought the pipe was relocated to the handover point, and only afterward was it found that the duct/shaft was too high?