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  • #16
    Re: Vent Tee installed upside down

    I'm not sure of the code section, but the SanTee being upside down is correct. That is one that I learned pretty early on. I had piped a 2" copper vent, picked up the 1.5 lav vent, and continued thru the roof, and my 2x1.5 san tee was upside down. The foreman told me it looked good, but there was something wrong and asked me what it was...It took him handing me the 2" couplings, and a new tee and asked me which way a tee was supposed to be installed on a vent. The thing that really got me is I had to re-cut my riser after I had made the measurement the correct way. So I changed it, and at the inspection the inspector commented on the couplings, and the foreman just pointed at the apprentice responsible. His response : San tee right side up still lets air through, but (pointing to the wall) this is right.

    Never will forget that rule again.

    Greg

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    • #17
      Re: Vent Tee installed upside down

      You have to special order pvc vent tee's in my area and the cost a lot more than a san tee so guess which one we use.
      sigpic

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      • #18
        Re: Vent Tee installed upside down

        Assuming all of the branch on a San. tee.(TY) is part of the branch vent, then it must be installed upside down. Otherwise would you not pitch your vents to your stack? I agree that either way it would work, but to be consistent, upside down would be best.
        Killertoiletspider
        I've had a few instances where I wish I could have used a " Vent tee " but my code doesn't allow it.
        Mike

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        • #19
          Re: Vent Tee installed upside down

          Originally posted by hack,hack,hackity,hack
          ahhhhhhhhhh, just put them in anyway you feel like it. Once the drywall is up noone will ever see it.


          Better yet,



          Shove about 10 idaho potatoes in it, call yourself a farmin' pwumbah
          Northern Kentucky Plumbers Twitter Feed | Plumbing Videos

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          • #20
            Re: Vent Tee installed upside down



            I think somebody's been slugging the friday night brewski's a wee bit much.

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            • #21
              Re: Vent Tee installed upside down

              Originally posted by toolaholic View Post
              THIS WILL GET BATTED AROUND FOR AT LEAST 40 POSTS. I believe both are acceptable
              Why is it labeled a vent tee,If it can't be used in that attitude? Ohh well I'm just a dumb Carpenter stirrin the RIDGID POT.
              not a dumb carpenter but a good thought.

              a vent tee and vent 90 are only made in plastic. in the old days there were durham vent 90's and tees.

              problem with some of these fittings are they are more expensive. typically you would use them when space in an issue.

              no hub doesn't have these fittings

              rick.
              phoebe it is

              Comment


              • #22
                Re: Vent Tee installed upside down

                Withholding my comment on this thread until ToUtahNow chimes in to set everyone straight

                Comment


                • #23
                  Re: Vent Tee installed upside down

                  IP
                  905.2 Grade.
                  All
                  vent and branch vent pipes shall be so graded
                  and connected as to drain back to the drainage pipe by gravity.

                  Oents convey water vapor from the drainage system
                  and such vapor can condense in the vent piping. Also,
                  rainwater can enter a vent system at the vent termination.
                  Therefore, the vent must be graded (sloped) to the
                  drainage system, thus preventing any accumulation of
                  condensate or rainwater. The slope of a vent pipe does
                  not affect the movement of air inside the pipe. It makes
                  no difference if the vent piping is sloped to drain back to
                  the drain piping served by the vent or if the vent piping
                  slopes to drain to a vent stack or stack vent, provided
                  that water will not stand in any portion of the venting
                  system (see Figure 905.2).
                  Vent piping must be adequately supported to maintain
                  slope and prevent sagging.

                  I read through the code again and there is no reference at all to the proper positioning of a san tee fitting. Except this paragraph that says it must grade back to the waste which it would regardless of how the tee was installed. That said I usually put them upside down because I think they look better.
                  sigpic

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                  • #24
                    Re: Vent Tee installed upside down

                    I look at it this way. If your venting two fixtures, you wouldn't have the outlets of both fittings facing each other. It would look flocked up.
                    Attached Files

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                    • #25
                      Re: Vent Tee installed upside down

                      Stoke, what kind of strapping system is that you use?
                      Buy cheap, buy twice.

                      Comment


                      • #26
                        Re: Vent Tee installed upside down

                        Looks like uni strut to me.
                        sigpic

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                        • #27
                          Re: Vent Tee installed upside down

                          LOL, I guess I should be more specific, how is it anchored to the floor(don't say hilti shot or tapcons). What is the base for the unistrut?
                          Buy cheap, buy twice.

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                          • #28
                            Re: Vent Tee installed upside down

                            Originally posted by gear junkie View Post
                            LOL, I guess I should be more specific, how is it anchored to the floor(don't say hilti shot or tapcons). What is the base for the unistrut?
                            Those bases are made for uni strut. I get them at Fastenall but I'll bet your supply house can get them also. If you don't have a uni strut catalog, get one. They have some really great products.
                            sigpic

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                            • #29
                              Re: Vent Tee installed upside down

                              Yes it's a strut base. 3/8 drop ins under the base. all thread. rough finish crete, grout bed for tile
                              Last edited by stokefire7; 08-02-2008, 09:40 AM.

                              Comment


                              • #30
                                Re: Vent Tee installed upside down

                                Originally posted by plumberscrack View Post
                                Withholding my comment on this thread until ToUtahNow chimes in to set everyone straight
                                bill, are you not trusting team geritol

                                by the way, mark and i are on the same page if that helps.

                                i spoke to him last night

                                are you trying to get onto team juvenile

                                rick.
                                phoebe it is

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