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  1. C

    what is the difference between sewer drain and stormwater drain?

    just guessing , but this is true.
  2. C

    what is the difference between sewer drain and stormwater drain?

    the sewer drain will be either Terracotta (known to plumbers as CLAY ) or 100mm pvc pipe. A storm drain will be plain cement/concrete , or if new 90mm pvc pipe .
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