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Open Roads Forum  >  Truck Campers

 > Black tank welding?

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Kayteg1

California > Nevada

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Posted: 09/16/20 09:05pm Link  |  Quote  |  Print  |  Notify Moderator

Need to reshape my black tank and that will require plastic welding.
Anybody has any experience with such job?
What tools are needed?





jimh425

Western MT

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Posted: 09/16/20 09:15pm Link  |  Quote  |  Print  |  Notify Moderator

That seems like a really smelly job with a smelly result if the fix fails. Have you thought about just buying another tank?


'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 Dbl Slide, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Air Bags, Hankook DH-01 225/19.5 Fs, Curt front hitch, Energy Suspension bump stops.


Seon

Lake Camanche, CA

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Posted: 09/16/20 09:29pm Link  |  Quote  |  Print  |  Notify Moderator

jimh425 wrote:

...Have you thought about just buying another tank?


Repairing seems like a (c)rap shoot. Replacing with new is a good idea [emoticon] .

* This post was edited 09/16/20 09:37pm by Seon *

dwrat

Phx, AZ

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Posted: 09/16/20 09:39pm Link  |  Quote  |  Print  |  Notify Moderator

Sounds like he needs to reshape his tank, not a new tank.
Yes there people who can do plastic welding.

time2roll

Southern California

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Posted: 09/16/20 09:44pm Link  |  Quote  |  Print  |  Notify Moderator

Some Plasti-Mend and some sheet ABS should work.
I assume the tank is ABS


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BobsYourUncle

Calgary Alberta Canada

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Posted: 09/16/20 09:51pm Link  |  Quote  |  Print  |  Notify Moderator

I replaced a black tank in a rebuild I did years ago, rather than repair the old one.
I went to my local RV parts store armed with the measurements I needed, and the hole locations.
They had a catalogue of generic tanks, with all the specs on them.
I picked the one I wanted, told them where to put the holes, and ordered it.
It fit perfectly.


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Now, What would you like done?


Kayteg1

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Posted: 09/16/20 10:04pm Link  |  Quote  |  Print  |  Notify Moderator

New tanks go in the range of $300 and I still would have to DIY the pipe flanges.
I know plastic welding is tricky, but in the past I was very good with welding rods and welding torches, so I am willing to try new trade.

JRscooby

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Posted: 09/17/20 04:24am Link  |  Quote  |  Print  |  Notify Moderator

Kayteg1 wrote:

New tanks go in the range of $300 and I still would have to DIY the pipe flanges.
I know plastic welding is tricky, but in the past I was very good with welding rods and welding torches, so I am willing to try new trade.


I have not done much of it, but welding plastic is pretty much like welding with a torch. Heat the material until it starts to flow, and flow in the rod. Instead of flame, use a stream of hot air.
I would want to practice on other things made out of same type material before I did the tank.

Seon

Lake Camanche, CA

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Posted: 09/17/20 05:40am Link  |  Quote  |  Print  |  Notify Moderator

Years ago I bought an ABS welder from Harbor Freight that I never used.
Is this what you're looking for?

https://www.harborfreight.com/plastic-we........or-and-temperature-adjustment-96712.html

Reality Check

North Bend

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Posted: 09/17/20 05:56am Link  |  Quote  |  Print  |  Notify Moderator

It's actually quite easy. Just get the correct 'filler' rod. Even available on Amazon.


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