Waste Pipe Sizing

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    • #278880
      Avatar photoadam typinski

        What are the rules dictating waste pipe sizing? I have to run a kitchen sink drain close to 25 feet. Is 2″ sufficient?

      • #299504
        Avatar photoGuest

          No you should be using 100mm pipe until you are above floor level then you can reduce down to 50mm

        • #299505
          Avatar photoWallingford Plm+Htg

            In Ct 2″ pipe is fine for a kitchen drain.Oversizing is not good as you will reduce the scouring action.

          • #299506
            Avatar photoSylvanLMP

              Yes 2″ would be fine for sink drainage REGARDLESS of lenth

              The waste line is sized by total Fixture units connected (FU) and also by the pitch of the piping.

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