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The thought just popped into my head as we'll be digging soon. There will be a perpendicular sewer through foundations, of which we have a good idea of location and depth from both ours and our neighbours manholes.
We will have foundations 500mm either side of sewer and 150mm below as per the build over agreement, but there is no requirement given for what the sewer has to be surrounded by. I just assumed we would have to dig it all out to expose it and then backfill with pea shingle or something, but I'm not sure now I think about it - maybe we could just dig 500mm either side and leave the middle as it is, full of earth?
What normally happens in this case? Without exposing the sewer we could not measure the 500 and 150 gaps exactly of course, but in our case we can have a pretty accurate guess.
What would a BCO normally expect to see? Only phoned ours this morning so thought I'd canvas general opinion before I pester him again!
We will have foundations 500mm either side of sewer and 150mm below as per the build over agreement, but there is no requirement given for what the sewer has to be surrounded by. I just assumed we would have to dig it all out to expose it and then backfill with pea shingle or something, but I'm not sure now I think about it - maybe we could just dig 500mm either side and leave the middle as it is, full of earth?
What normally happens in this case? Without exposing the sewer we could not measure the 500 and 150 gaps exactly of course, but in our case we can have a pretty accurate guess.
What would a BCO normally expect to see? Only phoned ours this morning so thought I'd canvas general opinion before I pester him again!
