Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×

Thread Tools Search this Thread Display Modes
Old 06-14-2021, 02:50 PM   #1
1 Rivet Member
1975 Argosy 28
Penn Valley , California
Join Date: Feb 2019
Posts: 8
1975 Argosy Grey/Black Tank Question

So we are doing what was supposed to be some cosmetic upgrades to our 1975 Argosy we purchased. The trailer had been reworked some years ago, and we wanted to make some adjustments to fit our needs a bit better (mainly dealing with travelling with little kiddos).

The previous owner had removed the traditional toilet and put a composting toilet in - we wanted to switch it back. We talked to them about it and they swore the trailer still had a black tank... Well we started the install last week and could not figure out where the toilet would connect to the black tank via the interior. We tore the flooring up and drilled some test holes and poked around to try and find the black tank connection to no avail.

Next we pulled the belly pan off and lo and behold, we only found a grey tank - a decent size one at that (15 gallons).

We were confused as our previous experience was with more modern RV that had black and grey tanks with the grey tank flushing out the black tank. We assumed that was the case here - which it does not seem to be.

So I started looking around online and am a bit confused as to how this was originally set up? Was the Black Tank above floor and the toilet resting on top of it on a platform?

Also it looks like the tank was re-plumbed but we are not sure and wanted to be sure that the plumbing we are seeing is OK/ functional. We need to purchase a new waste hose, but not sure we can find one in the correct size.

Last is there any resource that has an original manual for these trailers that we can download? If nto I think I found some online I can purchase, but it would be ideal to have digital access to it if possible.

I have included some photos as well for reference. Any help / input would be greatly appreciated!
Attached Thumbnails
Click image for larger version

Name:	Plumbing 04.jpg
Views:	7
Size:	187.6 KB
ID:	397439   Click image for larger version

Name:	Plumbing 03.jpg
Views:	7
Size:	233.3 KB
ID:	397440  

Click image for larger version

Name:	Plumbing 02.jpg
Views:	5
Size:	144.8 KB
ID:	397441   Click image for larger version

Name:	Plumbing 01.jpg
Views:	7
Size:	182.3 KB
ID:	397442  

Toyon 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
Repurpose black tank to grey tank The Rambler Waste Systems, Tanks & Totes 7 07-29-2015 10:10 PM
Replacing black water tank with grey water tank cheetah1 Sinks, Showers & Toilets 25 10-02-2014 05:26 AM
Black Tank, Grey Tank, New Tank, Old Tank Bunkroom Waste Systems, Tanks & Totes 3 07-22-2014 08:35 PM
VTS Vintage Grey Tank for Black Tank? bluemoontwo Waste Systems, Tanks & Totes 1 11-27-2012 08:03 AM
Replacing black/grey with a larger grey whitney Waste Systems, Tanks & Totes 11 05-08-2012 06:47 PM

Featured Campgrounds

Reviews provided by


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.

All times are GMT -6. The time now is 03:57 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.