sewer line

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    • #279018
      Ewen Johnson

      have installed a sewer line in a mojular home and would like to know the drop in inches to the septic line. Should the line hold water or be dry when water is put through it. I have a leak and water drips most of the time I know I need to re plumb but not sure how much drop in inches in the line. about 24′ from 1st hook up to main septic line

    • #299799
      Guest
      Participant

      Seems like you should have employed a professional plumber to install that line.

    • #299800
      Guest
      Participant

      Spook I would have to agree with you.It always costs more to do it over again.

    • #299801
      John Aldrich1
      Participant

      a walton,
      >have installed a sewer line in a mojular home and would like to know the drop in inches to the septic line.<

      The minimum slope in the sewer pipe is defined in the plumbing code in force in your specific jurisdiction. Generally though, most codes require at least a 1/8 inch drop per foot of 3-inch or, 4-inch sewer pipe. So, that is 1-inch of drop for every 8-feet of run. Check the local code and install the pipeline to the specifications defined therein.

      >Should the line hold water or be dry when water is put through it.<

      The purpose of a minimum slope in a gravity sewer pipeline is so that water will not remain in the pipe.

      >I have a leak and water drips most of the time I know I need to re plumb but not sure how much drop in inches in the line.<

      If you are using PVC, or ABS plastic DWV (Drain, Waste, and Vent) pipe, be sure to clean thoroughly all glue surfaces with the appropriate solvent/cleaner, and follow precisely the instructions on the container of cement. Attention to detail will prevent leaks in the future.

      >about 24′ from 1st hook up to main septic line<

      Seems like the MINIMUM fall in the sewer pipeline is 3″. The slope of the finished pipeline could be, and probably will be, greater than 1/8 inch per foot (up to vertical), but it can not be less than this grade. Again, check the local plumbing code to see what slope is required, it may be 1/4 inch per foot in some jurisdictions.

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