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10-10-2008, 08:17 AM
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#1
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Junior Member
Join Date: Sep 2008
Location: S.C.
Posts: 10
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Long story short- We cut a hole 1'x1' in our holding tank.is there a good way to patch it?
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10-10-2008, 08:17 AM
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#2
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Junior Member
Join Date: Sep 2008
Location: S.C.
Posts: 10
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Long story short- We cut a hole 1'x1' in our holding tank.is there a good way to patch it?
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10-10-2008, 09:11 AM
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#3
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Senior Member
Join Date: Aug 2003
Location: NE Ohio
Posts: 1,170
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There are places that do plastic "welding", and you can even buy DIY welding kits, but I've never done it. There have been a few reports on this forum that Eternabond tape works very well on patches & cracks in these plastic tanks.
good luck. (ps -why did ya cut a big hole like that?)
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Last Brave 2004 34D
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10-11-2008, 08:30 AM
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#4
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Junior Member
Join Date: Sep 2008
Location: S.C.
Posts: 10
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Had a fuel pump go bad and mechanic thought it would be easier to cut thru the bedroon floor to the gas tank instead of taking 50 gallons out of tank. Also the hydrolic jacks had a brace around the gas tank.would have to take jacks and brace off the gas tank to lower gas tank.we wish we would have done it the correct way but we got the fuel pump fixed.
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10-11-2008, 03:02 PM
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#5
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Junior Member
Join Date: Oct 2002
Location: Mesa AZ in winter, MN. in summer
Posts: 17
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Check with any rv dealer parts dept. They have repair kits to patch the tanks. If it is too big of a hole they should be able to give you advice. Doug in Mesa AZ.
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10-11-2008, 11:00 PM
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#6
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Community Moderator
Gulf Streamers Club Country Coach Owners Club Appalachian Campers
Join Date: Mar 2000
Location: Chattanooga, Tn.
Posts: 8,263
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If you find that patching is unsuccessful; body shops have plastic welders and could weld a plate over the whole. How mmuch room do you have to work with?
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Mike, Certified Master RV Technician
Amy, RV Merchandiser; Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser w/ Banks & 2 toads
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10-12-2008, 11:51 AM
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#7
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Senior Member
Join Date: Apr 2005
Posts: 249
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We had a crack on the bottom of our black tank where the outlet tube was. I can tell you that eternabond will not hold very long with pressure pushing out against it. I ended up replacing the tank. Wish I could have offered happier news, but spent too long trying to fix it before replacing. I did use eternabond on the top of a freshwater tank with good luck, just never over-filled it again. HarveyP
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94 Holiday Rambler Endeavor LE
Cummins/Allison
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10-12-2008, 03:09 PM
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#8
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Senior Member
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 6,933
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How about trying Mighty Putty? Go here for information.
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Gary
2005 Newmar KSDP 3910,
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
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10-13-2008, 11:03 AM
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#9
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Senior Member
Workhorse Chassis Owner
Join Date: Nov 2005
Posts: 621
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RV waste tanks are made of a special molded plastic so they can't be repaired with the adhesives used for PVC or ABS plumbing fixtures. However, www.pplmotorhomes.com sells a holding tank repair kit for around $40 plus shipping. I believe it uses an epoxy-based adhesive and a polyethelene patch. Might do the trick. I would also contact the service department at one of the larger RV dealers to see if they have any suggestions. Best of luck.
Jack
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2004 Winnebago Brave 34D with the usual add-ons
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10-13-2008, 03:06 PM
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#10
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Junior Member
Join Date: Sep 2008
Location: S.C.
Posts: 10
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Thanks for the input.We will try epoxy and 1" overlap of same plastic then screw it about 1-2 inches since the hole is on the top of the tank we hope this works. If not- taking it to RV place
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10-13-2008, 04:49 PM
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#11
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Registered User
Join Date: Aug 2002
Location: Socorro, NM (until ?)
Posts: 1,554
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Black tanks are usually ABS plastic (you need glue that is made for ABS plastic, available in the plumbing glues sections). The translucent white tanks are often polyethelene. I've never had much luck with getting those repaired.
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