ᐅ KG pipe below the slab not installed in a sand bed – is this a construction defect?
Created on: 24 Jul 2019 19:10
E
eddiesHello everyone,
we are building a house with a concrete slab foundation in Hesse.
Our construction has started, and right from the first step, I encountered the following issue.
The shell construction company installed the sewer pipes under the slab without a sand bed. The pipes were laid directly on the gravel base 0/45 and quartz sand was poured around and on top of the pipes. Then gravel was placed over this.
Of course, I was foolish not to intervene immediately, and the next day the concrete slab was already poured.
Because we also have a Kessel Pumpfix installed in the slab for backflow protection, there are several pipes under the slab. I fear that with this installation method without a proper sand bed, the pipes will not last long.
I reported this to the project manager of the builder. He said he is not happy about it and will forward it to the technical department for review. After consulting a homeowners' advisor, I was told this is a construction defect and that I should file a defect notice. I did so today and am now waiting for a response.
I suspect the builder might try to dismiss the issue by relying on a leakage test...
Can anyone with experience tell me if this already qualifies as a construction defect? Has anyone here had a similar situation on this forum?
I also don’t know what possible remedies are available. Removing the concrete slab is rather unrealistic. Perhaps extended liability from the builder for this work and proof of proper installation of the drainage system?
Please do not give advice about poor planning, lack of supervision, or similar criticisms on my part. I am quite frustrated and don’t need comments like that.
Maybe I am overthinking this and it is not a big deal. I honestly don’t know.
I hope future homeowners reading this won’t make the same mistake as I did…
Attached are some photos.
I appreciate any help and tips.
we are building a house with a concrete slab foundation in Hesse.
Our construction has started, and right from the first step, I encountered the following issue.
The shell construction company installed the sewer pipes under the slab without a sand bed. The pipes were laid directly on the gravel base 0/45 and quartz sand was poured around and on top of the pipes. Then gravel was placed over this.
Of course, I was foolish not to intervene immediately, and the next day the concrete slab was already poured.
Because we also have a Kessel Pumpfix installed in the slab for backflow protection, there are several pipes under the slab. I fear that with this installation method without a proper sand bed, the pipes will not last long.
I reported this to the project manager of the builder. He said he is not happy about it and will forward it to the technical department for review. After consulting a homeowners' advisor, I was told this is a construction defect and that I should file a defect notice. I did so today and am now waiting for a response.
I suspect the builder might try to dismiss the issue by relying on a leakage test...
Can anyone with experience tell me if this already qualifies as a construction defect? Has anyone here had a similar situation on this forum?
I also don’t know what possible remedies are available. Removing the concrete slab is rather unrealistic. Perhaps extended liability from the builder for this work and proof of proper installation of the drainage system?
Please do not give advice about poor planning, lack of supervision, or similar criticisms on my part. I am quite frustrated and don’t need comments like that.
Maybe I am overthinking this and it is not a big deal. I honestly don’t know.
I hope future homeowners reading this won’t make the same mistake as I did…
Attached are some photos.
I appreciate any help and tips.
rick2018 schrieb:
There should be a sand bed underneath.
Why not use KG2000 pipes?
I don’t think it will cause any major problems. The green KG2000 pipes are only outside the house and were correctly installed by the groundwork contractor with a sand bed. Do you mean it will cause major or no problems?
Thanks in advance for your comments...
No issues as mentioned.
Of course, kg2000 is not a regulation. But the additional cost is not high, and it is significantly more stable...
Especially since kg2000 was apparently used outside the foundation slab.
I don’t know of any construction around here that still uses KG (orange) pipes. At most, they are used in gardens as empty conduits because Kabu would be too expensive...
Of course, kg2000 is not a regulation. But the additional cost is not high, and it is significantly more stable...
Especially since kg2000 was apparently used outside the foundation slab.
I don’t know of any construction around here that still uses KG (orange) pipes. At most, they are used in gardens as empty conduits because Kabu would be too expensive...
Similar topics