Thread Tools Search this Thread Display Modes
Old 07-30-2014, 01:36 PM   #1
New Member
rasmac's Avatar
san antonio , Texas
Join Date: Oct 2012
Posts: 1
Water Fill Compartment Lock

greetings all,

i have a '76 Trade Wind that we're slowly refurbishing.

i was going to sanitize my water tanks, but i'm having a problem with the lock on the water fill door.
it doesn't want to open.
i've used WD40 and some graphite, but nothing so far.
from the "locked" position (12 o'clock), the key turns slightly to the left (10 o'clock) and stays there. the door does get a little loose, but remains shut.

any recommendations?



rasmac is offline   Reply With Quote
Old 07-30-2014, 02:37 PM   #2
Rivet Master
Belegedhel's Avatar
1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 1,902
Welcome to the Forums!

I had a similar problem with mine (didn't have the key for it, and it was a different lock than every other hatch on the trailer). So I pulled out the gaucho that the water fill is behind, and I was able (with minimal brute force) to remove the "latch" from inside, which then allowed me to remove the locking assembly, and to replace the whole shebang.

All of this, was, of course a total waste of time, as that water fill door is very poorly designed and allows water running down the side of the trailer to funnel down into your fresh water tank. You might wonder just how much water could possibly get past the fill door, and I tell ya, its a lot. I had a bucket under the fill inlet inside the trailer during my renovation, and it would easily collect a gallon of water during a moderate rainstorm. Since the plastic "funnel" shaped thing was cracked anyway, I eventually swapped the whole assembly out for a modern stainless steel number with a screw cap and a gasket around the door. No more nasty run-off in my freshwater tank now.

Belegedhel is offline   Reply With Quote
Old 07-30-2014, 03:14 PM   #3
Rivet Master
aquinob's Avatar
1973 27' Overlander
Portsmouth , Virginia
Join Date: Jun 2012
Posts: 775
I replaced the whole door assembly as well as part of this years renovations. It was documented here:


Ongoing adventures at:
aquinob is offline   Reply With Quote
Old 07-30-2014, 03:27 PM   #4
Rivet Master
dbj216's Avatar

1986 34' Limited
1966 24' Tradewind
Conifer , Colorado
Join Date: Jun 2009
Posts: 2,513
I lost the key to my door on the 86. I've been using a small screwdriver for the last 10 years. These locks are very inexpensive, but I haven't ordered a new one. I can feel the "tumblers" with my small screw driver and I just lift them and turn.

Keep soaking with penetrating oil, and maybe try a screwdriver for added rotational force.

dbj216 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
1964 fresh water tank fill cap lock Safari64 Fresh Water Systems 0 06-25-2013 12:30 AM
water fill lock/key Thetford moparjohn Exterior Storage Compartments & Access Doors 2 02-26-2013 02:28 PM
key for the Thetford lock on water fill door batt Doors & Locks 1 04-11-2012 07:22 PM
I can't lock the 'Water Tank Fill door' memgrove2000 Fresh Water Systems 6 07-04-2009 05:35 AM
Fridge compartment lock Ladi Holovsky All Argosy Trailers 3 08-30-2003 11:37 AM

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 06:24 AM.

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.