A company just installed 2 100 leach lines using the Infiltrator chambers. 11 of the 16 sections in one line had collapsed after backfilling. They removed all of that line. The other line has at least one section that has collapsed. They had not packed the sides before backfilling. In removing them they dug to the side & were able to save 5 of the 16 in the 1st line. Would it be OK to backfill this now double wide ditch then reexcavate or should we move to a new location. Also should I insist that all the chambers be replaced on the 2nd line. I am not sure their structural integrity has not been compromised by the way they were installed. Thanks for any advice you might give me. James
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