Thread Tools Search this Thread Display Modes
Old 02-25-2012, 01:23 PM   #1
2 Rivet Member
Alsupp's Avatar
1984 31' Sovereign
Andover , Kansas
Join Date: Mar 2006
Posts: 43
Tank Pan Removal

I need to replace the waste drain fittings on both the grey and black tanks on our '83 Sovereign. The manual says to drop the tank pan, but then mentions that the 'tanks must be supported' after the pan is removed. Has anyone tried this? Will I risk damaging the drain fittings from the lav and toilet if the tanks start to fall away when/during the pan removal? Is there a safe and less risky way to do this? Any advice would be appreciated! Thanks! John

Alsupp is offline   Reply With Quote
Old 03-13-2012, 06:57 AM   #2
Rivet Master
dbj216's Avatar

1986 34' Limited
1966 24' Tradewind
Conifer , Colorado
Join Date: Jun 2009
Posts: 2,506
Tank Pan Removal

I have exactly the same project on my list for our 86 Classic. The tank pan has been off twice on our trailer, but both times it was done by a dealer. At least I know my bolts holding it on are not rusted tight.

I have replaced my coroded belly pan, and I had trouble removing the stablizer jack bolts, propane line bolts, and pan bolts (rear edge only). I broke several of them as they are rusted tight. Bring lots of penetrating oil.

John and I need some advice on dropping the tank pan so we can replace our leaky slide valves. We don't want to break a tank while removing the pan.

I want to replace the slide valves and replumb the tank drain system to a RV standard 3" bayonet connector instead of the old Thetford 3 1/4 bayonet connector. And I will fabricate an access panel on the pan so I can service the slide valves without the hassle of dropping the pan.

Can someone who has done this project help us out?

dbj216 is offline   Reply With Quote
Old 03-13-2012, 07:02 AM   #3
2 Rivet Member
Alsupp's Avatar
1984 31' Sovereign
Andover , Kansas
Join Date: Mar 2006
Posts: 43
I received some great advice from Greg at Inland RV. Since I only have to replace the valves, I can 'carefully' cut away the sheet metal around the valve areas to gain access and therefore not remove the pan. Upon completion of the repair, simply fab a new sheet metal cover and fasten in place.

Mind you, I have not done this yet! Still fixing up the front end from the deer strike last fall!

I should make a posting if/when this works...
Alsupp is offline   Reply With Quote
Old 03-13-2012, 12:21 PM   #4
Silver Mist
LI Pets's Avatar
1977 31' Sovereign
Riverhead , New York
Join Date: Aug 2006
Posts: 3,008
Images: 28
I removed mine, as long as they are empty no issue, the black will hang on the toilet flange and vent pipe.

But I would add some support while you're working on it.

It is a bear on/off, I woul cut out as suggested above if I needed to get in there again.
'77 Sovereign Intl 31' CB
WBCCI R2 Rep VAC 11411 Metro NY VP

LI Pets is offline   Reply With Quote

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
Black water tank replacement '74 Land Yacht rear bath bhutch74ly Plumbing - Systems & Fixtures 27 06-23-2016 09:56 AM
Gray tank? cuyeda 1958 Traveler 3 02-26-2012 12:35 AM
Window sash removal lowellgray Windows & Screens 2 02-24-2012 09:37 AM
Interior insulation residue removal ehodg66 General Interior Topics 5 02-23-2012 07:38 AM
Fresh water tank barbed plastic fittings Mrad7777 Fresh Water Systems 3 02-21-2012 12:47 PM

Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:06 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

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