All users please be aware that the forum will switch to the new format this weekend (May 2-3 2026). You will see some changes in font and color and location of posts but basic functions should remain the same. Please post to the Help category if you experience issues.

Thanks

qhumberd
Moderator

Fresh water pushing out glycol from the Alde

2»

Comments

  • manyman297
    manyman297 Member Posts: 1,433
    Regarding what @Etheridges has going on, I wonder if the bung that plugs the glycol’s main drain line has sprung a leak? Aside from a catastrophic break in the Alde’s glycol lines, there’s no reason there should be glycol spilling under the trailer in that location. A breach between the water and glycol lines would remain contained within those two systems unless somebody opened a drain on either the water or glycol side.
    2021 400 BD
    2020 Tacoma TRD Off-Road 
    · Share on FacebookShare on Twitter Share on Google+
  • pthomas745
    pthomas745 Administrator, Moderator Posts: 4,521
    If the Alde isn't running and the trailer stationary, the normal escape routes for glycol would be hardly possible.  The Alde "auto air bleed" valve would eject glycol out of the "plug" in the floor under various circumstances.  The Alde expansion tank "vent tube" could also spill glycol out the plug in different ways.
    And, correct, the only other spot that Alde glycol could drop would be the Alde drain, if the plug were missing.
    If we are confusing "glycol" with winterizing "antifreeze", any of the low point drains could be the culprit here, depending on how the trailer was winterized.
    2017 Outback
    Towed by 2014 Touareg TDi
    · Share on FacebookShare on Twitter Share on Google+
  • webers3
    webers3 Member Posts: 432
    @manyman297 "A breach between the water and glycol lines would remain contained within those two systems"
    From my experience this is not the case. I had a breach between the water and glycol chamber. When I turned the water pump on, the water pressure caused the water to enter the glycol chamber through the breach, and through the path of least resistance push the glycol to the expansion tank and through the vent tube onto the ground.
    2017 T@B 320S   2019 Jeep Cherokee - Southern Connecticut
    · Share on FacebookShare on Twitter Share on Google+
  • manyman297
    manyman297 Member Posts: 1,433
    @webers3 I can see that happening but I assumed what @Etheridges was experiencing was through another drain tube since the glycol vent tube is usually a clear tube. @Etheridges mentioned it was a black tube so I assumed they were referring to maybe the glycol main drain with the bung in it.
    2021 400 BD
    2020 Tacoma TRD Off-Road 
    · Share on FacebookShare on Twitter Share on Google+
  • 2Campingfools
    2Campingfools Member Posts: 3
    Yup me too!! I have a 2021 320CSS and started dumping glycol from the expansion tank over flow tube when water system was pressurized. Going to take the ALDE apart and find the leak, I'll let everyone know what I find. Great thread here with valuable info, thanks all!!
    · Share on FacebookShare on Twitter Share on Google+
  • fineline72
    fineline72 Member Posts: 11
    I was asked in a direct message about the status of our Alde. After re-welding the Pinhole leak in our tank, everything has been as good as new, or maybe better :-)

    If you have this problem and know someone who can TIG weld stainless steel, it was a simple fix with basic hand tools and a little time. 


    Jerod and Rebecca - 2016 T@B 320 CS-S
    · Share on FacebookShare on Twitter Share on Google+
  • justdoit70
    justdoit70 Member Posts: 56
    well, I found my problem via this old 2022 thread. This is exactly what my problem is now do I sell my 21 meticulous 400 Boondock or spend thousands to have the thing replaced I’m stuck between a rock and a hard place if anybody can offer any insight, I’d be more willing to hear it. Thanks for your time. Looking through all the old post. Sorry for the rant.

    · Share on FacebookShare on Twitter Share on Google+
  • webers3
    webers3 Member Posts: 432
    justdoit70 said:
    well, I found my problem via this old 2022 thread. This is exactly what my problem is now do I sell my 21 meticulous 400 Boondock or spend thousands to have the thing replaced I’m stuck between a rock and a hard place if anybody can offer any insight, I’d be more willing to hear it. Thanks for your time. Looking through all the old post. Sorry for the rant.

    Bummer, Alde is a expensive replacement ($2500 in my case), I would press Truma (Alde) on this, this is reoccurring problem.
    2017 T@B 320S   2019 Jeep Cherokee - Southern Connecticut
    · Share on FacebookShare on Twitter Share on Google+

Categories