Posts: 604
Threads: 96
Joined: Jan 2021
Hey All,
When i first got my coach, I had an open threaded hole on the top of my waste tank. Turned out it was for the tank rinse system that directs hose water to either the top or bottom of the tank to rinse it out. It had been epoxied back into the side of the tank at some point.
Well I was looking at something else and notices that it had separated again.
Are these ABS tanks? Any suggestions on the best epoxy or other repair goo to use?
I have rigged up a support system for this rather long and heave assembly so it shouldn't happen again... maybe!
Be seeing you,
Rick Miller
#423
1996, 45'+, Non-slide, Series 60, ABS, 1.5 Bath, Reverse Floorplan
Posts: 708
Threads: 93
Joined: Nov 2018
Rick,
My tanks are Polyurethane a white slick feeling plastic. Not much will stick to it hence the epoxy coming loose. I don't have a fitting leaking as of yet but did investigate what would be a fix. Take a look at these links to see if this is a fix for you.
https://www.tank-depot.com/product.aspx?id=3330
https://www.youtube.com/watch?v=Vv14eNJmUeU
Steve & Doris Denton
45' Newell #525, Bath & Half....sold
37' Country Coach, Tribute....Cat C9, 400 hp
2014 Honda CRV Toad
Summerfield, FL
Posts: 2,695
Threads: 228
Joined: Jul 2012
I've used Uniseal fittings before, they work well on un-pressurized tanks.
Also look at plastic welding using a piece of the same plastic. The welders are cheap.
Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
PO 1999 Foretravel 36'
1998 Newell 45' #486
1993 Newell 39' #337
Posts: 604
Threads: 96
Joined: Jan 2021
Looks like the proper way is to spin weld on a new bung.... Wow, the spin weld fittings are cheap but the welding attachment (drill, router, etc) is pricey for a single repair.
I did find:
G/Flex 655 Epoxy
Allegedly this will work on our tanks.. Still looking for additional information.
I have a plastic welder already (connect air supply, electric heating element)
Access is pretty tight in there as well. This is the top fitting on the curb side. In my coach it's in the aquahot bay. I may have already posted a picture or two here.
Be seeing you,
Rick Miller
#423
1996, 45'+, Non-slide, Series 60, ABS, 1.5 Bath, Reverse Floorplan
Posts: 604
Threads: 96
Joined: Jan 2021
Anyone have any experience with G/Flex 655 Epoxy to fix our waste water tanks?
Thanks!
Be seeing you,
Rick Miller
#423
1996, 45'+, Non-slide, Series 60, ABS, 1.5 Bath, Reverse Floorplan
Posts: 5,411
Threads: 255
Joined: Jul 2012
It is not going to stick. The tanks are mid molecular weight polyethylene polymer. Slicker than snot to adhesives. Epoxies, even ones with less modulus ( rigidity) like G/Flex don’t bite on the slick surface.
Either spin weld it, or look for some sort of flange that compresses against a gasket.
https://www.google.com/search?q=polyethy...e&ie=UTF-8
Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home
)
Posts: 320
Threads: 4
Joined: Jun 2013
If they're polypropylene, like a bunch of tanks out there, Loctite has a glue that does work. I got it at Home Depot and reglued a drain fitting on a water tank in my last rig. It worked very well. It was specifically for polypropylene and other very hard to glue plastics.
06 M450LXi 3 slide
Posts: 604
Threads: 96
Joined: Jan 2021
Hmmmm
arcticdude do you recall the name??
Be seeing you,
Rick Miller
#423
1996, 45'+, Non-slide, Series 60, ABS, 1.5 Bath, Reverse Floorplan
Posts: 715
Threads: 49
Joined: Apr 2014
Jon & Chris Everton
1986 40' Dog House #86
450 hp ISM 5 spd ZF Ecomat 2
2004 Range Rover L322 Toad
Posts: 604
Threads: 96
Joined: Jan 2021
MrE,
So funny, I was on Amazon and ordered some of that...just to come back and se the link! Great minds think alike.
Thank you!
Be seeing you,
Rick Miller
#423
1996, 45'+, Non-slide, Series 60, ABS, 1.5 Bath, Reverse Floorplan
