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  • p-trap question

    I noticed that all p-trap only have one side connect to horizontal line. Why we cannot install p-trap on both side horizontally? because it will slow down the flow and clog the line?
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  • #2
    Re: p-trap question

    Originally posted by thisnewowner View Post
    because it will slow down the flow and clog the line?
    That's part of it. By code, (Fla.), the trap shall be placed as close as
    possible to the fixture outlet. The vertical distance from the fixture outlet
    to the trap weir shall not exceed 24 inches. Clothes washer stand pipes
    fall under a different rule. One example of a horizontal trap inlet and outlet
    is a building trap which is prohibited under our code, except where local
    conditions necessitate such traps. (I know, I know). And when used there
    must be a cleanout and a relief vent on the inlet side of the trap. Also, traps
    need to be self-scouring. Let the obfuscation commence.

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    • #3
      Re: p-trap question

      Basically, you are describing a running trap, and codes don't like that

      Comment


      • #4
        Re: p-trap question

        [QUOTE=lovetheUSA;332011]Basically, you are describing a running trap, and codes don't like that[/QUOTE

        Bout the only running trap allowed is on condesate drains for a/c right?
        Poor Planning On Your Part Does Not Constitute An Emergency On My Part!!
        You can fire me...but you can't tell me what to do!

        Derek

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        • #5
          Re: p-trap question

          [QUOTE=dcman;332021]
          Originally posted by lovetheUSA View Post
          Basically, you are describing a running trap, and codes don't like that[/QUOTE

          Bout the only running trap allowed is on condesate drains for a/c right?

          Or to get out of an overhang back into a heated space
          ''Beer is proof that God loves us and wants us to be happy" Benjamin Franklin

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          • #6
            Re: p-trap question

            [QUOTE=dcman;332021]
            Originally posted by lovetheUSA View Post
            Basically, you are describing a running trap, and codes don't like that[/QUOTE

            Bout the only running trap allowed is on condesate drains for a/c right?
            And don't forget S.F. IS FAMOUS FOR CABLE CARS AND WHOLE HOUSE TRAPS !
            I can build anything You want , if you draw a picture of it , on the back of a big enough check .

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            • #7
              Re: p-trap question

              House traps can be considered as running traps as well.

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              • #8
                Re: p-trap question

                Originally posted by Flux View Post
                House traps can be considered as running traps as well.
                Forgot about that...don't have many here...
                Poor Planning On Your Part Does Not Constitute An Emergency On My Part!!
                You can fire me...but you can't tell me what to do!

                Derek

                Comment


                • #9
                  Re: p-trap question

                  Originally posted by toolaholic
                  And don't forget S.F. IS FAMOUS FOR ... WHOLE HOUSE TRAPS !
                  Why did they do that?
                  Do they have a ground vent for the sewer line just after the house trap?
                  Last edited by Robert Gift; 02-12-2011, 08:54 AM.
                  I'd take an educated guess - but I'm unqualified.
                  It ain't just soot, it's paydirt.
                  "I swear, wherever Gift goes, argument follows." -Youtube comment

                  Comment


                  • #10
                    Re: p-trap question

                    Originally posted by Robert Gift View Post
                    Why did they do that?
                    Do they have a ground vent for the sewer line just after the house trap?
                    Insp, said with the steep hills the velocity of the sewer , and street runoff water, could siphon the fixture traps
                    I can build anything You want , if you draw a picture of it , on the back of a big enough check .

                    Comment


                    • #11
                      Re: p-trap question

                      Originally posted by toolaholic View Post
                      Insp, said with the steep hills the velocity of the sewer , and street runoff water, could siphon the fixture traps
                      Wondered about the velocity.
                      But would that not also siphon the 3-inch trap - if that it what it is?
                      Do they have a vent after the house trap?

                      Does rain water also enter the sanitary sewer?
                      I'd take an educated guess - but I'm unqualified.
                      It ain't just soot, it's paydirt.
                      "I swear, wherever Gift goes, argument follows." -Youtube comment

                      Comment

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