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trap primer not working ???????

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  • trap primer not working ???????

    installed 2 ppp pr-500 for 2 floor drains. Ya now I know 1 would have taken care of both.
    Haven't checked the 2nd one but one isn't working. how does the allen adjusting screw work?? Arrows are installed correct . and this is not the one that backed up on the drain line test. thanks Tool
    I can build anything You want , if you draw a picture of it , on the back of a big enough check .

  • #2
    Re: trap primer not working ???????

    Are you getting enough pressure drop?
    Some have problems when they rough in close to a low volume fixture,I.E. drinking fountain.

    Others too far away in the middle of the system.

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    • #3
      Re: trap primer not working ???????

      PR-500 shows "Prime Right".No adjusting.

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      • #4
        Re: trap primer not working ???????

        i'm sure you know this but no pipe dope! or like dirty said not enough pressure drop i think its needs something like 10# or so..
        Last edited by plumbworker; 07-03-2009, 04:37 PM.

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        • #5
          Re: trap primer not working ???????

          They are both close to the faucets 12" of so. I use unions ,and pipe dope. I'll check them for debrea next week. PRV is set at 60 psi for home. Thanks Tool
          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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          • #6
            Re: trap primer not working ???????

            Remove the other primer and install it in place of the non working one. But, first flush the line and no pipe dope, just tape. Quickest way to determine whether the primer is defective.
            Last edited by Plumbus; 07-04-2009, 07:55 PM.

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            • #7
              Re: trap primer not working ???????

              Originally posted by drtyhands View Post
              Are you getting enough pressure drop?
              Some have problems when they rough in close to a low volume fixture,I.E. drinking fountain.

              Others too far away in the middle of the system.
              This is a laundry tray with standard 2 valves. Good flow. Can You please explain pressure drop ,and how it is affected in this application ,Thank's Tool
              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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              • #8
                Re: trap primer not working ???????

                tool, years ago we were allowed to use trap primers that had an adjusting screw to dial them in for the proper flow. the way they operate is when they detect a drop in pressure. they open to provide a drip to keep the trap wet/ primed.

                but in the last 20+ years we can't install trap primers with the adjusting screw or a dedicated shut off valve. this is to keep people from shutting them off.

                the pressure drop is required to allow them to open. if there is not enough of a pressure drop they remain in the closed position and defeat their purpose of supplying water to the trap.

                i'm sure a few steaks and i can fix it right up

                rick.
                phoebe it is

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                • #9
                  Re: trap primer not working ???????

                  PPP - P500 Trap Primer web page

                  Instruction Sheets

                  Prime Rite - PDF Plugin Required

                  P1 and P2 - PDF Plugin Required


                  Last edited by Bob D.; 07-05-2009, 07:06 PM.
                  "When we build let us think we build forever. Let it not be for present delight nor for present use alone. Let it be such work that our descendants will thank us for, and let us think, as we lay stone upon stone, that a time is to come when these stones will be held sacred because our hands have touched them, and that men will say, as they look upon the labor and wrought substance of them, "See! This our fathers did for us."
                  John Ruskin (1819 - 1900)

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                  • #10
                    Re: trap primer not working ???????

                    Originally posted by PLUMBER RICK View Post
                    tool, years ago we were allowed to use trap primers that had an adjusting screw to dial them in for the proper flow. the way they operate is when they detect a drop in pressure. they open to provide a drip to keep the trap wet/ primed.

                    but in the last 20+ years we can't install trap primers with the adjusting screw or a dedicated shut off valve. this is to keep people from shutting them off.

                    the pressure drop is required to allow them to open. if there is not enough of a pressure drop they remain in the closed position and defeat their purpose of supplying water to the trap.

                    i'm sure a few steaks and i can fix it right up

                    rick.
                    Give him a holler on your flyover home and he can toss'em up to you.

                    Comment


                    • #11
                      Re: trap primer not working ???????

                      Thanks guys,Plumbus nailed it! Way to much pipe dope from the old DOPE ! Cleaned both of them up ,adjusted the allen set screw, works fine. I do like the adjust option,are these against code for Me in S.F.?? Cal .steam stocks these. I realize in general,I'm using too much pipe dope, That is over. Yes only tape this time. It says right on the Unit NO DOPE OR
                      NO GUARANTEE! Stupid G. C.S, TYPICAL!!
                      I can build anything You want , if you draw a picture of it , on the back of a big enough check .

                      Comment

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