Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-03-2011, 10:47 AM   #1
3 Rivet Member
 
1969 27' Overlander
Albuquerque , New Mexico
Join Date: Sep 2011
Posts: 168
Waste tank issues? 1969 Overlander

I've got several qustions about the 1969 Overlander black tank:
The 1.5" black pipe from the kitchen sink and tub (passenger side) appears to circle around the rear of the trailer to the driver's side, and joins into the tank next to the toilet (I think). The sink drops directly into the tank, at the rear. However, when I look at the gate valve at the rear, I can just barely see a black 1.5" pipe which appears to join the gate valve assembly BETWEEN the gate valve a cover-cap. This appears to come from the driver's side. Is this a vent? It looks factory, but I can't tell if the tub and kitchen sink drain back into this pipe, too, which wouldn't make sense.
The reason I ask is I'm getting leakage below the gate valve, and when I pull the cap, there's liquid in there (which gushes out) when I test the kitchen sink. It seems to be coming from this mystery line.
I don't think the gate valve itself is leaking, however. It appears to be sealing fine.
After I tested the lines for the first time, there was a terrible odor for several days, so I obviously have either a tank leak, or a bad pipe joint.
I don't want to pull the tank unless I have to, of course.
Thanks!
__________________

__________________
edglenn is offline   Reply With Quote
Old 10-03-2011, 11:53 AM   #2
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by edglenn View Post
I've got several qustions about the 1969 Overlander black tank:
The 1.5" black pipe from the kitchen sink and tub (passenger side) appears to circle around the rear of the trailer to the driver's side, and joins into the tank next to the toilet (I think). The sink drops directly into the tank, at the rear. However, when I look at the gate valve at the rear, I can just barely see a black 1.5" pipe which appears to join the gate valve assembly BETWEEN the gate valve a cover-cap. This appears to come from the driver's side. Is this a vent? It looks factory, but I can't tell if the tub and kitchen sink drain back into this pipe, too, which wouldn't make sense.
The reason I ask is I'm getting leakage below the gate valve, and when I pull the cap, there's liquid in there (which gushes out) when I test the kitchen sink. It seems to be coming from this mystery line.
I don't think the gate valve itself is leaking, however. It appears to be sealing fine.
After I tested the lines for the first time, there was a terrible odor for several days, so I obviously have either a tank leak, or a bad pipe joint.
I don't want to pull the tank unless I have to, of course.
Thanks!
Those old tanks were prone to cracking on the top.

Empty the tank and all it's contents.

Then drop in 2 to 4 ounces of food coloring.

Fill the tank with a garden hose, and see what happens.

The food coloring allows you to better locate the leak.

Andy
__________________

__________________
Inland RV Center, In is offline   Reply With Quote
Old 10-03-2011, 07:58 PM   #3
3 Rivet Member
 
1969 27' Overlander
Albuquerque , New Mexico
Join Date: Sep 2011
Posts: 168
Tank leak

Andy, thanks.
Will I need to remove a section of the bathroom floor to see the top of the tank? All I can see right now is the end of the gate valve, and none of the actual tank. I think I may be able to remove the toilet, and a section of the plywood floor. The PO had framed it up to raise the toilet, so I can cut out a section below the framing. As far as I can tell, the flange he used fits tight into the vertical tube feeding the tank. I don't think that's whats leaking, but I could be wrong on that.
Are these tanks repairable, and if so, what is used? Are they standard Polypropylene?
__________________
edglenn is offline   Reply With Quote
Old 10-03-2011, 10:44 PM   #4
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by edglenn View Post
Andy, thanks.
Will I need to remove a section of the bathroom floor to see the top of the tank? All I can see right now is the end of the gate valve, and none of the actual tank. I think I may be able to remove the toilet, and a section of the plywood floor. The PO had framed it up to raise the toilet, so I can cut out a section below the framing. As far as I can tell, the flange he used fits tight into the vertical tube feeding the tank. I don't think that's whats leaking, but I could be wrong on that.
Are these tanks repairable, and if so, what is used? Are they standard Polypropylene?
How about a photo showing the floor flange, since that area was modified.

The old tanks were made with a junk plastic that simply dies in time, and crack.

Can it be repaired?

Yes, again and again and again.

Replacing it stops the headaches.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 10-04-2011, 11:59 AM   #5
1 Rivet Member
 
1969 27' Overlander
Turbotville , Pennsylvania
Join Date: Mar 2009
Posts: 9
The water from the tub and sinks don't drain into the tank, they drain outboard of the gate valve. If you have the cover cap on and use the sink, the water will back up in the piping, and when you remove the cap, it will come gushing out. This gray water will smell pretty bad too.

The first thing that tipped us off that our black tank was leaking was that the sheet metal box surrounding it had rusted through.
__________________
JRookie 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
Relocating Fresh tank - 68 Overlander JIMandPJ Fresh Water Systems 3 12-03-2011 10:45 AM
1969 Airstream overlander International ClayC Airstream Registry Discussions 0 09-19-2011 03:16 PM
1969 blackwater tank tracker Waste Systems, Tanks & Totes 1 09-12-2011 12:57 AM
Waste tank Ronmccoy Waste Systems, Tanks & Totes 0 09-04-2011 12:02 AM
69 Overlander water tank swap colin57 Waste Systems, Tanks & Totes 2 04-24-2011 09:23 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:13 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.