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rockwind1's avatar
rockwind1
Explorer II
Jan 30, 2017

propane slow leak question

hi, have a 2007 attitude. i did the 3 minute pressure test and my guage didn't move,,,,however, i left it on and i noticed that after about an 1 hour 20 minutes it went from about 7 inches to 6 inches.

would this be concerning. i kind of like everything perfect but if this is no problem, i don't want to spend hours chasing a micro leak. . i have soaped about everything with no bubbles.

19 Replies

  • CA Traveler wrote:
    rockwind1 wrote:
    not sure how it could be the tank because i turn the tank on to pressurize the system, my guage goes up to where ever 11 or something. then i shut tank off so it should be out of the equation, then i turn on stove to bring pressure down to 7 or 8 lbs, in this case it was around 7.2. then i did the 3 minute test which went fine. then i i waited and watched and noticed the much slower drop as described above.

    any other opinions out there? thanks, kevin
    Yes the tank is out of the equation and the regulator is working correctly. With the tank valve off the regulator bleeds out the propane in the line. This is why you have to purge the air when the tank has been shut off.



    :H

    Regulator has NO place to bleed propane unless 1st or 2nd stage diaphragm is cracked/leaking.....then it 'bleeds' out the vent hole
  • rockwind1 wrote:
    not sure how it could be the tank because i turn the tank on to pressurize the system, my guage goes up to where ever 11 or something. then i shut tank off so it should be out of the equation, then i turn on stove to bring pressure down to 7 or 8 lbs, in this case it was around 7.2. then i did the 3 minute test which went fine. then i i waited and watched and noticed the much slower drop as described above.

    any other opinions out there? thanks, kevin
    Yes the tank is out of the equation and the regulator is working correctly. With the tank valve off the regulator bleeds out the propane in the line. This is why you have to purge the air when the tank has been shut off.
  • rockwind1 wrote:
    been meaning to maybe buy a new regulator anyway,
    At ten years old I recommend it.
    I like the Cavagna brand if you have a choice (amazon)
  • korbe wrote:
    The way I look at it is like this. When I shut off the stove and turn off the tanks for a couple of weeks, then return to use the stove, I need to wait for the gas to get from the tanks to the stove. Where did the gas go that was left in the lines when I last turned off the tanks? It must have "leaked" out somewhere.


    Every TT and 5er that I ever had has done this. Never did figure out where it goes, but tanks are always off between outings so, I don't worry about it too much.
  • korbe, so are you saying no big deal? i have brand new pigtail hoses with the big green nuts, you know the 12" or 16" ones. i soaped them up good, would the leak be so slow there would be no bubbles?

    been meaning to maybe buy a new regulator anyway,
  • The way I look at it is like this. When I shut off the stove and turn off the tanks for a couple of weeks, then return to use the stove, I need to wait for the gas to get from the tanks to the stove. Where did the gas go that was left in the lines when I last turned off the tanks? It must have "leaked" out somewhere.
  • 2007 and small propane leak.......

    Check VENTS on regulator (small pin hole on 1st stage and large screened ne on 2nd stage)

    Check fittings/bushing on pigtail hoses....especially bushing on Big Green Nut.
  • not sure how it could be the tank because i turn the tank on to pressurize the system, my guage goes up to where ever 11 or something. then i shut tank off so it should be out of the equation, then i turn on stove to bring pressure down to 7 or 8 lbs, in this case it was around 7.2. then i did the 3 minute test which went fine. then i i waited and watched and noticed the much slower drop as described above.

    any other opinions out there? thanks, kevin
  • I had a similar issue with my last camper. Never did figure it out. I just got a new tank and that solved the problem. No more leaking.