Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-17-2010, 10:17 PM   #1
3 Rivet Member
 
1973 31' Sovereign
Fort Worth , Texas
Join Date: Jul 2010
Posts: 102
Images: 27
73 black tank valve replacement

my 73 rear bath 31 sovereign has a black tank valve that slowly lets the liquids leak into the grey water area.

I have gone as far as pulling the toilet and bribing my 9 yr old son with $10 to stick a trash bag covered arm in there and scrape the valve. that helped a little and I was able to close the valve all the way but it still leaks.

The valve itself is white with a handle on the top that has metal clips on the side when you close it all the way. I can see 4 screws holding it on.

How do these things come out? Can I replace the valve parts when I remove the screws without replacing the whole valve? Are there different options on replacing it?
__________________

__________________
We will soon begin traveling with our family of 5 (and a large dog) Looking forward to remodeling our Airstream, awesome adventures, and meeting new people.

www.steventothemax.com
steven2themax is offline   Reply With Quote
Old 11-17-2010, 10:39 PM   #2
x
 
XXXX , XXXX
Join Date: Jun 2010
Posts: 2,601
Steven The valves are available. They remove by those four screws. Call Inland Andy and he will get you the right valve. I'm not sure but the valve repair kits I think are no longer available.
__________________

__________________
wasagachris is offline   Reply With Quote
Old 11-18-2010, 10:48 AM   #3
3 Rivet Member
 
1973 31' Sovereign
Fort Worth , Texas
Join Date: Jul 2010
Posts: 102
Images: 27
WHat happens when you remove the screws? Does it just pull out vertically? Any cutting involved?
__________________
We will soon begin traveling with our family of 5 (and a large dog) Looking forward to remodeling our Airstream, awesome adventures, and meeting new people.

www.steventothemax.com
steven2themax is offline   Reply With Quote
Old 11-18-2010, 11:37 AM   #4
x
 
XXXX , XXXX
Join Date: Jun 2010
Posts: 2,601
The valve is glued to your 3" drain pipeing. It will require replacing this pipeing. It is common 3" ABS pipe available at any hardware outllet. The big orange will have it.
When I replaced mine I updated the drain end(available from any RV outlet) to accept the new sewer hose connections. The original Thetford fitting is hard to find and limits your'e choices of slinky hose connections.
The new valves I got were a press on fit so no glueing was required to fit the valve.
__________________
wasagachris is offline   Reply With Quote
Old 11-18-2010, 03:17 PM   #5
3 Rivet Member
 
1973 31' Sovereign
Fort Worth , Texas
Join Date: Jul 2010
Posts: 102
Images: 27
Thanks Chris. So I'll have to cut the 3" at the valve and also where the grey water comes in? And replace basically a Y shaped ABS configuration.
__________________
We will soon begin traveling with our family of 5 (and a large dog) Looking forward to remodeling our Airstream, awesome adventures, and meeting new people.

www.steventothemax.com
steven2themax is offline   Reply With Quote
Old 11-18-2010, 03:30 PM   #6
x
 
XXXX , XXXX
Join Date: Jun 2010
Posts: 2,601
I guess so. Since you do not have a grey tank. Make sure you cut the grey pipe somewhere that you can attach a 3" ABS coupler. Then attach more 3" pipe to get to the Y and attach the other leg of the Y to the new valve. Then screw the new valve body into the valve flange that remains connected to the black tank. Then the rest of the 3" pipe and slinky hose fittings can be attached to the third leg of the Y.
I have both black and grey tanks so both lines had valve flanges attached to tanks and were slipped into the tank fittings and secured with gear clamps.
__________________
wasagachris is offline   Reply With Quote
Old 11-18-2010, 03:40 PM   #7
x
 
XXXX , XXXX
Join Date: Jun 2010
Posts: 2,601
Stephen I just had a look at the drainage diagram for the 73 31 rear bath. It looks like the grey line reduces down to 2" ABS right before the Y and goes through two 45 elbows and then runs along the back edge of the black tank. I'm not sure because the diagram is small but there may be a coupler between the two elbows you could just undo the gear clamps and only have to replace the reuder and the first elbow. If not that's where you could cut the 2" ABS and use a rubber coupler called a FERNCO fitting. It slips over each end of the pipe and clamps down with two gear clamps.
__________________
wasagachris is offline   Reply With Quote
Old 09-18-2012, 06:15 PM   #8
3 Rivet Member
 
texasbound's Avatar
 
1974 31' Sovereign
Bothell , Washington
Join Date: Aug 2012
Posts: 149
Quote:
Originally Posted by wasagachris View Post
Stephen I just had a look at the drainage diagram for the 73 31 rear bath. It looks like the grey line reduces down to 2" ABS right before the Y and goes through two 45 elbows and then runs along the back edge of the black tank. I'm not sure because the diagram is small but there may be a coupler between the two elbows you could just undo the gear clamps and only have to replace the reuder and the first elbow. If not that's where you could cut the 2" ABS and use a rubber coupler called a FERNCO fitting. It slips over each end of the pipe and clamps down with two gear clamps.
Wasachris,

Where did you find the 73 drainage diagram? I need that info for my 74. Thanks!
__________________

__________________
-=TexasBound=-
1974 - 31' Airstream Sovereign Land Yacht "Dudley"
WBCCI # 7616

http://ismelltexas.wordpress.com
texasbound 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
Problem black tank valve? adonh Waste Systems, Tanks & Totes 4 05-10-2010 03:00 PM
Is there a black-water-tank valve? hagnik Waste Systems, Tanks & Totes 1 08-31-2009 08:18 AM
Black tank valve replace Ramp Waste Systems, Tanks & Totes 6 12-24-2007 12:44 PM
Black Tank valve redo GlenCoombe Waste Systems, Tanks & Totes 3 09-15-2006 08:05 PM
Black Tank Valve Repair 87MH Waste Systems, Tanks & Totes 4 01-27-2004 07:47 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:40 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.