Reply
 
Thread Tools Display Modes
Old 04-18-2015, 01:23 PM   #1
Commercial Member
 
Join Date: Jul 2013
Location: Akron, Ohio
Posts: 1,145
Black tank not ABS ?

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.
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.



__________________

__________________
.
I write a blog on RV tire application and safety and give seminars on tires at RV events across the US. 40 years experience as tire design & quality engineer for major tire mfg. Freelander 23QB on Chevy chassis is my RV
RV Tire Safety Blog
Tireman9 is offline   Reply With Quote
Old 04-18-2015, 01:29 PM   #2
Mod free 5er
 
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,215
Can you use the rubber sleeves and hose clamps?
__________________

__________________
OldCoot is offline   Reply With Quote
Old 04-18-2015, 02:10 PM   #3
Commercial Member
 
Join Date: Jul 2013
Location: Akron, Ohio
Posts: 1,145
Nope. At this point there is no "neck from the tank just a hole. I made the mistake of assuming the neck and tank were ABS as there was an ABS pipe glued inside the neck.
I have an ABS fitting designed to be glued into a hole that then allows ABS pipe to be glued to the inside of the fitting.

The more I learn it appears that my only option in 2-part Epoxy.

I have a flat sheet of ABS that I can epoxy & screw into side of tank to provide support and stiffing of the side of the tank.

I can then lay on a lot of epoxy and slide the ABS fitting into the hole. After that sets up continue to valves using standard ABS pipe & fittings.
I do have rubber "Union" that will cut down on the vibration a bit.

I think the only permanent "fix" is a new tank assuming there is such available.
__________________
.
I write a blog on RV tire application and safety and give seminars on tires at RV events across the US. 40 years experience as tire design & quality engineer for major tire mfg. Freelander 23QB on Chevy chassis is my RV
RV Tire Safety Blog
Tireman9 is offline   Reply With Quote
Old 04-18-2015, 02:27 PM   #4
Senior Member
 
Join Date: Oct 2013
Location: Georgetown, TX
Posts: 276
3M has a whole group of industrial adhesives. You might check out this one

Â*Â*3M™ Scotch-Weld™ Epoxy Adhesive EC-2216

I have used 3M-8115 - GM uses it to bond fenders onto cars. I am not sure it will work on you material. Might give 3M a call


3M Panel Bonding Adhesive 08115
__________________
cadman99 is offline   Reply With Quote
Old 04-18-2015, 02:29 PM   #5
Senior Member
 
bubbles's Avatar
 
Join Date: Dec 2012
Posts: 2,562
Guess you have tried PVC glue.
__________________
bubbles is offline   Reply With Quote
Old 04-18-2015, 04:49 PM   #6
Mod free 5er
 
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,215
Have you tried welding it with a soldering iron? Just a thought, might make a square patch, solder the pipe to it and them epoxy the patch w/ pipe to the tank and the seal all around the patch with the rope caulking or silicone.
__________________
OldCoot is offline   Reply With Quote
Old 04-18-2015, 04:54 PM   #7
Senior Member
 
B and B's Avatar
 
Join Date: Jun 2013
Location: Wilmot Twp, Ontario, Canada
Posts: 8,604
Try a toilet flange, attach to the tank with stainless hardware, PL premium the caulk with silicone. Then you have abs you can glue your fittings too!
__________________
B and B is offline   Reply With Quote
Old 04-18-2015, 04:57 PM   #8
Senior Member
 
northstar1960's Avatar
 
Join Date: Feb 2015
Location: in my new 29hfsxlr
Posts: 1,658
a 2 part epoxy for plastics will work , or a good silicone the epoxy will be stronger . you will not be under pressure or at least not much and should seal fairly easily with an epoxy
__________________
northstar1960 is offline   Reply With Quote
Old 04-18-2015, 04:58 PM   #9
Senior Member
 
northstar1960's Avatar
 
Join Date: Feb 2015
Location: in my new 29hfsxlr
Posts: 1,658
now if you can get into the tank you can use a threaded piece of abs stick it through with a nut on the back side and silicone it
__________________
northstar1960 is offline   Reply With Quote
Old 04-18-2015, 05:31 PM   #10
Commercial Member
 
Join Date: Jul 2013
Location: Akron, Ohio
Posts: 1,145
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.
__________________

__________________
.
I write a blog on RV tire application and safety and give seminars on tires at RV events across the US. 40 years experience as tire design & quality engineer for major tire mfg. Freelander 23QB on Chevy chassis is my RV
RV Tire Safety Blog
Tireman9 is offline   Reply With Quote
Reply

Tags
black, black tank, tank

Thread Tools
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



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:21 AM.