Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 04-18-2015, 12:27 PM   #1
Senior Member
Commercial Member
 
Join Date: Mar 2010
Location: Akron, Ohio
Posts: 1,471
Black tank not ABS ??? HELP

Am trying to do a repair on the black tank but it appears the tank is not ABS but some other type of plastic. How do I glue ABS to the tank?

2008 Coachmen Freelander. Dump valves not installed correctly so handles pointed down and have been broken twice by road debris. So am replacing valves & lines.
Have ABS pipe & fittings to go from tank to new valves and while removing old ABS pipe it appears the neck of the tank is NOT ABS as it doesn't melt like ABS does from heat of the saw or soften when I apply ABS specific solvent glue.
So now I have a real problem as I have no idea how to properly glue ABS fittings or reinforcement panel tot he side of the tank.

Coachmen did glue some ABS pipe into the tank but the glue they uses didn't fuse the tank plastic.

Ideas appreciated as it appears my only option now is a new tank assuming I can get one as I find nothing similar in size & shape from businesses selling holding tanks and there is no identifiable part number on the tank.

This job is going downhill fast. help is needed.



__________________

__________________
Retired Design & Quality Tire Eng. Read my tire blog RVTireSafety.NET to learn more about RV tires, valves & wheels. Read THIS post on why Tires Fail
Tireman9 is online now   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-18-2015, 12:48 PM   #2
Senior Member
 
Join Date: May 2013
Location: Aransas Pass, TX
Posts: 251
If your tank is poly, this should work
__________________

__________________
HoneyBadger is offline   Reply With Quote
Old 04-18-2015, 01:12 PM   #3
Senior Member
Commercial Member
 
Join Date: Mar 2010
Location: Akron, Ohio
Posts: 1,471
Thanks Honey
Will get some and do a test. I am learning that the tank may be LDPE which is not the same as PVC but it's worth a try.
__________________
Retired Design & Quality Tire Eng. Read my tire blog RVTireSafety.NET to learn more about RV tires, valves & wheels. Read THIS post on why Tires Fail
Tireman9 is online now   Reply With Quote
Old 04-18-2015, 04:33 PM   #4
Senior Member
Commercial Member
 
Join Date: Mar 2010
Location: Akron, Ohio
Posts: 1,471
Found This 3M product that will bond LDPE which is what I now believe the tank is made of based on input from various sources.

Will bond & screw a 5" x 5" ABS 1/8" flat sheet to side of tank.
After that sets up I will run another bead of the 3M epoxy around the inside of the hole. The Spigot will have heavy ABS to ABD solvent glue on its flat flange so am hopint the part of the spigot that goes into the tank through the hole will have epoxy on inside plus ABS glue to the ABS flat panel that will be part of the side of the tank.
Kind of a belt + suspenders approach.

Then its easy after that as just ABS to ABS etc.

My thanks to all for the ideas and input.
__________________
Retired Design & Quality Tire Eng. Read my tire blog RVTireSafety.NET to learn more about RV tires, valves & wheels. Read THIS post on why Tires Fail
Tireman9 is online now   Reply With Quote
Old 04-19-2015, 06:47 AM   #5
Senior Member
 
dabrooks's Avatar
 
Tiffin Owners Club
Join Date: Sep 2012
Location: Maryland
Posts: 1,000
Hope you post some photos of the repair process.
__________________
dabrooks is offline   Reply With Quote
Old 04-19-2015, 10:53 AM   #6
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,073
Polyethylene is another common water/waste tank material.
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 04-20-2015, 10:37 PM   #7
Senior Member
 
FIRE UP's Avatar


 
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 5,270
Tireman,
Many of the fittings used on todays water and holding tanks are "spin welded" into place. While on close-up tour on the assembly line at Winnebago last summer, I watched them construct each tank and, then install fittings in a large, high RPM motor, kind-a like a great big drill motor. Then, they put the fitting in the tanks and, turned on the motor for about 5 or so seconds at a fairly high rate of speed.

Basically, that spins that fitting, in the hole and, creates enough heat to SELF WELD the fitting to the tank. Now, I can't remember if they did ALL the fittings to ALL the tanks but, this is what I saw. I've been a welder my entire life and I found that process fascinating. I knew about it long ago but, never actually saw it done, in person. It was neat.
Scott
__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '08 GL 1800 Gold Wing
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Sophie character, (mini Schnauzer)
FIRE UP is offline   Reply With Quote
Old 04-21-2015, 12:32 PM   #8
Senior Member
Commercial Member
 
Join Date: Mar 2010
Location: Akron, Ohio
Posts: 1,471
Fire Up. Thanks. I knew about the spin weld process. The issue is that only works if tou are using the same family of plastic.
It appears that in 2008 Coachmen apparently had a LDPE blow molded tank. they tried to glue and use hose clamps on the neck of the tank to attach it to the ABS pipe that then connected vial solvent glue to other ABS fittings and then the valve etc.

Only recently have epoxy adhesives been developed that work on Polyethylene. One such is 3M DP8005 but this is expensive $35 for 2 OZ and takes a special $50 applicator.

Coachmen is of no help as I am being told they need dimensions and would have to have a custom tank made. I see no reason for Camping World & Coachmen to take their cut and if needed will spec a custom tank myself.
__________________

__________________
Retired Design & Quality Tire Eng. Read my tire blog RVTireSafety.NET to learn more about RV tires, valves & wheels. Read THIS post on why Tires Fail
Tireman9 is online now   Reply With Quote
Reply

Tags
tank, abs



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
Cure for clogged Black Tank Dave1956 RV Systems & Appliances 3 03-08-2015 05:34 PM
black tank question boeingair National RV Owner's Forum 4 10-30-2014 11:25 AM
A black tank mystery Old Sarge MH-General Discussions & Problems 24 08-25-2014 07:12 PM
Black Tank smell in 2013 Sunstar 26HE Rossi6998 Winnebago Industries Owner's Forum 19 08-16-2014 12:07 PM
Black tank emptying Bradswife RV Systems & Appliances 9 05-12-2014 08:18 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:17 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.