Where's my glycol leak coming from

Jeff92
Jeff92 Member Posts: 6
in Heating/Plumbing & Winterizing
I just purchased a 2016 tab 320 and when I got home I noticed a decent drip from the rear. The next morning it was still dripping and I looked inside at the glycol level and the tank was empty. It was a 5 hour drive home and everything was tested working before the purchase. This is my first trailer and I'm new to the alde system. I checked the drain plug and it was there and definitely not leaking from there. Its leaking in the center where there are two bolts that come down and dripping from those. I went inside and looked on the floor under the cushions and couldn't find and sign of a leak. Where could this be coming from and am I just not looking hard enough on the inside. Any help would be appreciated.

Comments

  • AnOldUR
    AnOldUR Member Posts: 1,739
    Looks like the bolts where the spare tire was mounted. That's not much help to you, but it could just be the place allowing the glycol to escape. The leak could be at any of the connections or bleeder valve and draining to that low point. If you don't see any indication opposite those bolts or elsewhere, you might try adding distilled water to the system to find the leak rather than wasting more glycol.
    Stockton, New Jersey
    2020 nuCamp T@B 320S * Jeep Wrangler
    60,865 camping miles through the end of 2025

  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,035
    A common area of glycol loss is the auto air bleeder, but that has a hose that would move the glycol to a tube under the TaB.  Unless you sprung a leak in the rear glycol hose, I can’t imagine an Alde leak that doesn’t’t reveal itself under the bench.
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
  • Jeff92
    Jeff92 Member Posts: 6
    If the auto air bleeder leaks where does it leak to? Does it leak under the bench? Or does it leak by dripping outside similar to mine?
  • Jeff92
    Jeff92 Member Posts: 6
    I found the leak i put a little distilled water and napkins everywhere and found it coming from one of the hose connections on the expansion tank. It didn't take much water or time to find it.
  • AnOldUR
    AnOldUR Member Posts: 1,739
    Those outlets for the expansion tank have been known to leak and break. Mine started as a crack that leaked. When I removed the hose it broke of entirely.


    Stockton, New Jersey
    2020 nuCamp T@B 320S * Jeep Wrangler
    60,865 camping miles through the end of 2025

  • Jeff92
    Jeff92 Member Posts: 6
    Thanks for both tips with the water and checking for a crack. I inspect it with a mirror. I know for sure right now the hose is only halfway on one side some I'm hoping it just worked it's way down. Those hose clamps are a pain to loosen.
  • Jeff92
    Jeff92 Member Posts: 6
    Sure enough there was a small crack.
  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,035
    Ok.  Easy fix!  Glad it wasn’t the boiler!
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
  • Tabaz
    Tabaz Member Posts: 2,420
    I had the same cracked reservoir on my 2016.  I'm convinced that NuCamp did not leave enough Alde hose slack leading into the reservoir.  This put a strain on that nipple.  I extended the hose to allow a full 90 degree bend.  No problems since after seven years. 
    2016 Outback 320
    2024 Ford F150 Supercrew short bed.
  • fstop32
    fstop32 Member Posts: 391
    Might be a good time to snug up all the clamps while you are at it.
    DaveR middleTN - 2015 320S  /  TV 2003 Tundra 4x4

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