Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-13-2019, 09:38 AM   #1
4 Rivet Member
 
1977 31' Sovereign
Vintage Kin Owner
Vintage Kin Owner
Sunset Valley , Texas
Join Date: Jul 2016
Posts: 494
AC drip system outside walls?

Has anyone installed the Dometic drip cup/tube outside the inner skin? I am thinking of a quick connect type connection on the roof so that when I have the AC running the condensation can run down the tube outside the trailer into a bucket or plant or something.

I should mention, this is on my '78 Avion that doesn't have the tube inside the inner wall like my '77 airstream does/did/will again.

I am getting a new AC (replacement for the new one I just got that what was damaged during shipping) and was considering adding the double gasket and drip cup kit as a way to curtail the insane amount of condensation generated here in humid TX when running the AC. I'd rather it not just pool up and run down the sides and would like to have control over what gets wet when I can.

Plan would include a cap for the tail when in transit/storage and a 10'-15' long drain tube that I'd connect when camping or using the AC at home. I carry a ladder with me when camping.

Any thoughts?

Thanks,
Ian
__________________

Iansk is offline   Reply With Quote
Old 08-13-2019, 10:18 AM   #2
Rivet Master
 
Belegedhel's Avatar
 
1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 2,545
Can't say that I have ever heard of anyone doing something like this...

Not knowing much about how Avions are put together, I ask, is there a way to install the condensate capture system as if you had the line in the wall, but then run your new line behind a celing panel for a few feet, then have it come out of the ceiling and go down to the floor within a cabinet/closet? If your Avion has a center panel that hides the central nervous system (wiring harness, etc., like in Airstreams), this might be easier to achieve than running something all the way to the floor within a wall, and less hassle than climbing up and connecting the drain tube at each camping spot.

good luck!
__________________

Belegedhel is offline   Reply With Quote
Old 08-13-2019, 10:46 AM   #3
4 Rivet Member
 
1977 31' Sovereign
Vintage Kin Owner
Vintage Kin Owner
Sunset Valley , Texas
Join Date: Jul 2016
Posts: 494
Quote:
Originally Posted by Belegedhel View Post
Can't say that I have ever heard of anyone doing something like this...

Not knowing much about how Avions are put together, I ask, is there a way to install the condensate capture system as if you had the line in the wall, but then run your new line behind a celing panel for a few feet, then have it come out of the ceiling and go down to the floor within a cabinet/closet? If your Avion has a center panel that hides the central nervous system (wiring harness, etc., like in Airstreams), this might be easier to achieve than running something all the way to the floor within a wall, and less hassle than climbing up and connecting the drain tube at each camping spot.

good luck!
Maybe I can finally be the first at something then ...

Avions (my era anyway) have the benefit and curse of rigid spray foam insulation. Benefit: amazing insulation, my SilverStreak with traditional insulation is miserable in this heat we are having even with the AC running full blast. It's my office and I can't use it right now but the Avion, parked next to it is blessedly cool on low.
Curse: accessing/routing stuff in the walls.

The rigid insulation has held up remarkably well and shows no sign of breaking down or turning to powder.

My Avion interior is in perfect original condition and I am loath to turn it into an aluminum onion unless I have a serious need to so I'd like to approach this from the outside where I will have to remove and replace the unit.

I actually went to the hardware store and cobbled together some bits to try it as a test and other than the tubing being undersized and casting some vapor lock, it worked pretty well.

My AS is in a million bits and pieces so I was able to yoink the drip cups from it to see about size/height etc...

I can reach the edge of my AC unit from a 6 step ladder and if it's just a matter of a slip fit hose, I figure, why not?

Thanks Belegedhel,
stay cool down there...

Ian
Iansk is offline   Reply With Quote
Old 08-13-2019, 12:11 PM   #4
Rivet Master
 
Belegedhel's Avatar
 
1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 2,545
Seems very do-able, and also sounds like you have already gone a long way in that direction, in terms of piecing it together and planning it out. Full speed ahead, I say!

Heat endex down here yesterday was 114 F. With the blessing of a huge shade tree, I can cool my (nearly empty of cabinetry) Airstream with the AC running at something between medium and full blast to a comfortable level. Doubt if it would have a chance in the full sun.

good luck!
Belegedhel is offline   Reply With Quote
Old 08-13-2019, 01:11 PM   #5
Rivet Master
 
1981 31' Excella II
New Market , Alabama
Join Date: Sep 2011
Posts: 5,917
It should work but keep in mind that in really humid environments the cups don't work that well. This is an issue that can be fixed if you want to do some work. Main issue is that there are places where the water bypasses the cups on the drain pan. The holes can be sealed and you should have a good system.



Perry
perryg114 is offline   Reply With Quote
Old 08-13-2019, 01:39 PM   #6
4 Rivet Member
 
1977 31' Sovereign
Vintage Kin Owner
Vintage Kin Owner
Sunset Valley , Texas
Join Date: Jul 2016
Posts: 494
Quote:
Originally Posted by perryg114 View Post
It should work but keep in mind that in really humid environments the cups don't work that well. This is an issue that can be fixed if you want to do some work. Main issue is that there are places where the water bypasses the cups on the drain pan. The holes can be sealed and you should have a good system.



Perry
Thanks Perry,

I see no real reason why it shouldn't work, which is why I wanted to see what I could be missing. Adding another layer of gasket, but not having to cut it and route the lines through the gasket is appealing. I'm thinking I'd mount the cups in reverse so the drain spout face out, shorten those a bit and start the line with an elbow to connect the two sides via a T and add my line from there.

The mockup I did was giving me vapor lock (if that's the right term) and the water would backup until i shook the drain line, then water would come pouring out. Thinking this was due to too small of tubing at 1/4" ID.

I've got the extra gasket kit already from another project and the cups off my airstream, so it's not an added expense.

New AC arrives today though I doubt I'll get to an install until next week. May just throw it on some sawhorses and play with the cup placement.

In trying to cool down my SilverStreak, I collected almost 5 gallons of runoff over night! Huuuumid.

Ian
Iansk is offline   Reply With Quote
Old 08-14-2019, 10:02 AM   #7
Rivet Master
 
1981 31' Excella II
New Market , Alabama
Join Date: Sep 2011
Posts: 5,917
5 gallons is a lot of water. You live in Houston or something?




Perry
perryg114 is offline   Reply With Quote
Old 08-14-2019, 10:42 AM   #8
Rivet Master
 
Belegedhel's Avatar
 
1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 2,545
So if you aren't running the tubes through the doubled gaskets and into the trailer, do you really need the doubled gaskets? Are they needed just to give you adequate clearance for the cups?
Belegedhel is offline   Reply With Quote
Old 08-14-2019, 11:10 AM   #9
Stay CazuaL
 
cazual6's Avatar
 
2018 25' Flying Cloud
2014 19' Flying Cloud
Reseda , California
Join Date: Aug 2014
Posts: 706
Images: 1
I don't see why not.

I'm actually brainstorming how I can do that to my Split System at my house. I would want to redirect that condensation to my emergency water collector.

The key would be using the least resistance for water to flow with maximum downward angle.
__________________
"No job is so simple that it cannot be done wrong."
"Everyone is entitled to be stupid, but some abuse the privilege."
"Either I will find a way, or I will make one."
"Sweat is your fat crying"
WBCCI 9164
cazual6 is offline   Reply With Quote
Old 08-14-2019, 12:10 PM   #10
3 Rivet Member

 
2014 25' FB Flying Cloud
Kingwood , Texas
Join Date: Jun 2017
Posts: 152
Blog Entries: 1
I just replaced the drain cups on my single 15,000 BTU AC unit and added the additional gasket to our 2014 FC 25 FBT. We were having water leaking inside the trailer from the passenger side of the AC inside diverter. I found that the nipple on the drain cup on passenger side was broken and the water was leaking back into the trailer from that break. Long story short the drain tube is 1/2” ID. I added an additional coupling and hose to the hose end in the wheel well so that the drain water was drained away from the trailer pad to the ground. Our pad at Lake Livingston SP was fairly dry last week compared to other trailers where they were walking in drain water. Try a 1/2” Tube to see if it allows the water to drain easier.
DoubleR is offline   Reply With Quote
Old 08-14-2019, 12:42 PM   #11
4 Rivet Member
 
1977 31' Sovereign
Vintage Kin Owner
Vintage Kin Owner
Sunset Valley , Texas
Join Date: Jul 2016
Posts: 494
Quote:
Originally Posted by perryg114 View Post
5 gallons is a lot of water. You live in Houston or something?




Perry
Within the Austin city limits. It was especially humid last night.

Ian
Iansk is offline   Reply With Quote
Old 08-14-2019, 12:44 PM   #12
4 Rivet Member
 
1977 31' Sovereign
Vintage Kin Owner
Vintage Kin Owner
Sunset Valley , Texas
Join Date: Jul 2016
Posts: 494
Quote:
Originally Posted by Belegedhel View Post
So if you aren't running the tubes through the doubled gaskets and into the trailer, do you really need the doubled gaskets? Are they needed just to give you adequate clearance for the cups?
Yeah, you need the double gasket to clear the cups. Compressing the gaskets to about 50% and/or 40-50 lbs of torque would push the cups into the roof without doubling up...

Ian
Iansk is offline   Reply With Quote
Old 08-14-2019, 12:48 PM   #13
4 Rivet Member
 
1977 31' Sovereign
Vintage Kin Owner
Vintage Kin Owner
Sunset Valley , Texas
Join Date: Jul 2016
Posts: 494
Quote:
Originally Posted by DoubleR View Post
I just replaced the drain cups on my single 15,000 BTU AC unit and added the additional gasket to our 2014 FC 25 FBT. We were having water leaking inside the trailer from the passenger side of the AC inside diverter. I found that the nipple on the drain cup on passenger side was broken and the water was leaking back into the trailer from that break. Long story short the drain tube is 1/2” ID. I added an additional coupling and hose to the hose end in the wheel well so that the drain water was drained away from the trailer pad to the ground. Our pad at Lake Livingston SP was fairly dry last week compared to other trailers where they were walking in drain water. Try a 1/2” Tube to see if it allows the water to drain easier.
Yeah, 1/2" seems about right. I'll have to look at the drain cups and hose I stole from the airstream.

I'm considering going with the Coleman Mach 8 instead of the Dometic Penguin II, still need to investigate whether the Dometic cups can be screwed to the pan of the Mach...

Does anyone have any input on that? Or if Coleman makes a similar deal? Heading to Google after this post, but figured I'd ask.

Ian
Iansk is offline   Reply With Quote
Old 08-14-2019, 02:32 PM   #14
4 Rivet Member
 
1977 31' Sovereign
Vintage Kin Owner
Vintage Kin Owner
Sunset Valley , Texas
Join Date: Jul 2016
Posts: 494
After some research (instead of working)...

Good thing (or not) that I am my own boss because instead of working I am researching this little project.

I think this thread could very well help folks down the road who don't want water running down their trailer and either don't have a drain tube installed in the wall or perhaps it's clogged or damaged or???

Anyway, as I move towards the Mach 8 over the present Dometic Penguin II (reasons being: 1) Made in the USA vs China, 2) purported to be quieter and 3) the first unit was damaged during shipping but I had already removed the old unit and we were going camping for my birthday (same as Wally's). Amazon was kind enough to replace the unit but that one arrived yesterday and looked like Godzilla played football with it so I refused shipment. Amazon graciously granted an immediate refund so I can get another AC to use the box to send the old unit back in.) I am finding that Coleman uses a condensation pump that is wired in as opposed to cups. While searching the webs I ran across The Greatly's great blog (again) and saw they detailed the installation of their Mach 8.

The Mach units collect condensation into a cup on the curbside and drain onto the roof from there. What is nice about this set up is that I don't need to add the second gasket and can just install a passive drain here.

In the photo below you can see two holes in the water collection bay, I think I'll close one and enlarge the other to attach a drain and quick connect type of fitting.

Check the Greatly's blog, it is a fount of information:

https://thegreatleys.com/journal

Stole this photo from the Greatly's blog:
Attached Thumbnails
Click image for larger version

Name:	Screenshot 2019-08-14 15.07.37.png
Views:	7
Size:	1.57 MB
ID:	349390  
__________________

Iansk is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Drip, drip, drip. Or not to drip? Vitaver Plumbing - Systems & Fixtures 9 12-19-2016 07:25 PM
drip- drip-drip-drip-drip.... AIR-Quarius Furnaces, Heaters, Fireplaces & Air Conditioning 3 08-09-2009 07:32 AM
Arrggggg! Drip, Drip, Drip—Warning, plumbing questions Jim & Susan Sinks, Showers & Toilets 16 06-10-2009 08:04 PM
Drip, Drip, Drip kamadeca Fresh Water Systems 4 05-20-2008 08:22 PM
AC drip,drip,drip,drip,drip Canuks Furnaces, Heaters, Fireplaces & Air Conditioning 6 06-02-2006 02:05 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:58 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.