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For civil engineers,

There is a high drain connection work is under progress in my location. Few days ago, a contractor visited my house and asked me to construct 2ftX2ft inspection chamber inside the premise for connection with high sewage drain. Now I found that there is another inspection chamber being construct outside my premise building(at road) and these are finally being joined with manholes.

My question is, what is the need of 2 inspection chamber just inside and outside the premise building?

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    $\begingroup$ ask the contractor. also how much will they pay for your land? $\endgroup$
    – Solar Mike
    Feb 19 at 6:57

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