Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-22-2002, 10:15 AM   #1
Still Working
 
smily's Avatar
 
1994 36' Classic 36
North Charleston , South Carolina
Join Date: Jul 2002
Posts: 1,651
Images: 19
Lightbulb Retrofit Grey water tanks

Has anyone ever retrofitted a grey water tank?

I have read the cons of the weight issue and I am aware of them but I cant help but think that someone has tried it.

I was thinking of a 4" PVC pipe that was strapped under the trailer and it ran the length of the trailer, (nominaly).

If a pipe of 4 " about 20 feet long were strapped to the under side it would hold quite a bit of water and to evenly distribute weight, one could install two lengths of pipe, one on each side.

I believe that this concept would work, a little jerry riggish but functional.

Of course the tanks would have to be emptied prior to leaving the campground or site or traveling on the highway.

20 feet x 4 inches would equal about 13 gallons.

Thoughts from the Gallery?

SMily

__________________

__________________
smily is offline   Reply With Quote
Old 01-30-2003, 01:08 PM   #2
3 Rivet Member
 
Zed2's Avatar
 
1993 21' Sovereign
Plano , Texas
Join Date: Jun 2002
Posts: 121
Smily,
I am thinking along the same line. The challenge would be bisecting the axle with the pipe. Alternatively, the pipe could be snaked around the rear half of the trailer.

Another approach is to mount an exterior tank that would be 4" deep across the rear of the trailer. I would think that the tank, either galvanized metal or plastic enclosed in a metal shell, could be held in place with two straps fastened to the frame rails.

Let's keep this topic alive and challenge some of the more engineering minded owners.
Regards,
Keith
__________________

__________________
Zed2 is offline   Reply With Quote
Old 01-30-2003, 02:53 PM   #3
Moderator Emeritus
 
Pick's Avatar
 
1972 31' Sovereign
High Springs , Florida
Join Date: May 2002
Posts: 2,310
Images: 36
Send a message via AIM to Pick
Just an idea.....

If you run the PVC the length of the trailer, it could just go UNDER the axles. You would have a slight dip in the middle, which may hold some of the water, and prevent it from draining properly. Or another idea would be to snake it back and forth between the rear of the trailer, and the rear axle. If you used the axle to support the front half, it would put less strain on the frame. You would have to come up with some sort of mounting, that would compensate for the suspension movement between trailer and axle though. You could put solenoid valves on each run in the middle, and open them over a sewer grate at a truck stop, or other parking lot. (Don't take me seriously on that last sentence!) I think 29 feet of 4 inch ID will hold around 19 gallons, which could weigh 160# more or less.
__________________
ARS WA8ZYT
2003 GMC 2500HD 4X4 D/A Ext. Cab
Propane Powered Honda EU2000i
Lots of Hot Sauce!
Air # 283
WBCCI 1350
Pick is offline   Reply With Quote
Old 01-30-2003, 03:10 PM   #4
Rivet Master
 
Road Ruler's Avatar
 
Currently Looking...
St. Catharines , South Western Ontario
Join Date: Aug 2002
Posts: 2,364
Images: 39
I just stumbled on to this thread and find it interesting. Our 73 Safari has no grey water tank. The ABS pipe is an neat idea. I know that the previous owner cut the belly pan away up front and had a spare tire mounted there. The tire is gone but it sure is a large cavity. Is there any reason why that space couldn't be used to hold a tank of somekind? I guess it would be best to still have a pipe running to the rear for convienience of dumping. Any thoughts on this location being appropriate?
__________________
Airstreams..... The best towing trailers on the planet!
Road Ruler is offline   Reply With Quote
Old 01-30-2003, 04:55 PM   #5
4 Rivet Member
 
Jabba's Avatar
 
1955 30' Liner Commodore Vanderbilt
Wayne County , Michigan
Join Date: Sep 2002
Posts: 421
Images: 17
The possibilities...

Why not go with a "U" shape or square with a wye or tee at the rear corner turned down at a slight angle to provide ground clearance yet help drainage? Figure 2-6.5'(+/-) runs across the rig and at least 2-8'(+/-) fore and aft runs and you'd have 29' of pipe not including the 90's and you wouldn't have to contend with the axle...just an idea.
__________________
Jason & Veronica J.
S.E. Michigan
1955 Commodore Vanderbilt 30'
"Hawley"
TAC Member MI-6
2008 Chevy Silverado Ext. Z71 w3.73
Jabba is offline   Reply With Quote
Old 01-31-2003, 09:33 AM   #6
Rivet Master
 
wb13798's Avatar
 
2004 28' Classic
Currently Looking...
huntsville , Alabama
Join Date: Jul 2002
Posts: 866
Images: 1
sounds good but wait till you have to clean the pipe out. all tanks get cloged up and are a mess to clean. need to red neck engineer a cleanout system for the pipe also. if you need the tank call the trailer dealer in alabama he has a zillion tanks stacked in his storage bldg. lol
al
__________________
wb13798 is offline   Reply With Quote
Old 01-31-2003, 09:59 AM   #7
4 Rivet Member
 
Jabba's Avatar
 
1955 30' Liner Commodore Vanderbilt
Wayne County , Michigan
Join Date: Sep 2002
Posts: 421
Images: 17
solution...

chimney brush cut down to fit on the end of a plumbing snake ingineers-r-us, attach it by using the bailing wire holding the pick-up box sides together!
__________________
Jason & Veronica J.
S.E. Michigan
1955 Commodore Vanderbilt 30'
"Hawley"
TAC Member MI-6
2008 Chevy Silverado Ext. Z71 w3.73
Jabba is offline   Reply With Quote
Old 01-31-2003, 10:13 AM   #8
Still Working
 
smily's Avatar
 
1994 36' Classic 36
North Charleston , South Carolina
Join Date: Jul 2002
Posts: 1,651
Images: 19
Clean out

Some form of hose fitting could be installed at the opposite end of the tube for flushing.

Smily
__________________
smily is offline   Reply With Quote
Old 01-31-2003, 11:16 AM   #9
Rivet Master
 
davidz71's Avatar
 
1986 25' Sovereign
Southern Middle , Tennessee
Join Date: Mar 2002
Posts: 3,150
Images: 23
Since they make a telescoping rod with a screw-on brush attachment on the end and a water hose coupling at the handle, all you would have to do is find a brush that would mount to the end and scrub/flush away.
__________________
Craig

AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
davidz71 is offline   Reply With Quote
Old 02-01-2003, 01:11 AM   #10
Rivet Master
 
Forrest's Avatar
 
1986 32' Excella
Aurora , Colorado
Join Date: Jun 2002
Posts: 636
Images: 21
Exclamation Made one but it didn't work.

I had to remove and replace the rear portion of pan under my bath/toilet area because the shower drain had been poorly repaired. Anyway that area is fairly open with no frame cross-members creating an obstacle. So, I built a grey water tank out of 3" pvc piping by snaking it back and forth. I was able to fit it into the cavity and could have covered it with alum sheeting (which I finally did to repair the pan). But I gave up on the grey tank at that location because there was no way for the shower to drain into it. Also, it interfered with draining the shower to any location. The depth of the trailer frame under the floor is only five inches, and that was needed to install the p-trap for the shower.

Running pipe like that under the pan and under the axle would probably work, but it would lower your ground clearance significantly. The danger there is if you high center it on almost anything the grey tank would be ripped off and possibly it might take some of your other plumbing with it (along with sheet metal). Also, you would decrease the streamlining of your A/S, increasing mpg on your tow vehicle. Finally, I think it would look terrible, but to each his own!
__________________
Forrest is offline   Reply With Quote
Old 02-01-2003, 01:17 AM   #11
Rivet Master
 
Forrest's Avatar
 
1986 32' Excella
Aurora , Colorado
Join Date: Jun 2002
Posts: 636
Images: 21
Lightbulb Addendum

Oh, I forgot to mention that the pipe I used was 4" not 3" and by snaking it back and forth I was able to have a run of about 8 feet. I'm not good at figuring volume in cylinders so I tested it by pooring water in one gallon at a time. I think I got about an 8 gallon capacity, if I remember correctly. A 3" line would obviously be less. An 8 gallon capacity might not be worth the effort.
__________________

__________________
Forrest 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
Grey water waste tanks... Chuck Waste Systems, Tanks & Totes 32 08-11-2005 07:07 AM
Using grey water for flushing....? Sneakinup Waste Systems, Tanks & Totes 9 11-04-2003 05:52 PM
Why not grey water into black tank? pilgrim_still Waste Systems, Tanks & Totes 40 10-08-2003 08:59 PM
grey water plumbing vent Cruiser Waste Systems, Tanks & Totes 6 07-14-2003 03:03 PM
No Grey Water Tank????? Anna Waste Systems, Tanks & Totes 16 11-17-2002 08:33 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:47 PM.


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.