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dobber
Joined: 19 Oct 2008
Posts: 18
Location: norway michigan-in the U.P.!!
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 Posted:
Sun Oct 19, 2008 4:29 pm Post subject:
Wastewater Tank Repair |
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'Sup everyone. I'm a nube, Just got a '78 Dodge (Delta) class C.
I'm sure this topic has been covered a million times, but here's one more. Both the grey water and black water tanks are leaking. They have been repaired once before me, but didn't hold. I have removed the tanks and cut an access hole in the top of each tank: going to try it from the inside. My question is what product would be best to repair abs plastic? I can see a crack or two and I was envisioning using some kind of epoxy that I can pour into that corner of the tank and roll it around to ensure that it runs into every crack and crevice, but I have heard that epoxy doesn't stick to abs. Need first hand advice. Is epoxy the way to go or is there another method?
Thank you all so much and I will be back! Much to share and ask. |
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KWMyers
Joined: 24 Oct 2006
Posts: 138
Location: Missouri, USA
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Sun Oct 19, 2008 6:17 pm Post subject:
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| Use fiberglass cloth material with ABS cement and you'll have success. Should be available from any good RV supply store. Drill the end of the cracks with a 1/8" drill to stop the crack(s) from spreading first. |
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dobber
Joined: 19 Oct 2008
Posts: 18
Location: norway michigan-in the U.P.!!
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Mon Oct 20, 2008 9:13 am Post subject:
Re: |
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| KWMyers wrote: | | Use fiberglass cloth material with ABS cement and you'll have success. Should be available from any good RV supply store. Drill the end of the cracks with a 1/8" drill to stop the crack(s) from spreading first. |
Kinda sounds like what I had in mind; however, because of the location of the damage which is almost directly under a 3" pipe that the last guy installed and pushed it quite far into the tank, I'm not sure a fiberglass "blanket" would suffice. What do you think about mixing abs cement with just bulk fiberglass (the dry powdered fiber stuff) and then applying it with like a 2" paint brush dabbing it on, in and around the cracks, and maybe doing this a couple times?
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KWMyers
Joined: 24 Oct 2006
Posts: 138
Location: Missouri, USA
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Mon Oct 20, 2008 3:08 pm Post subject:
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| I don't have any experience beyond what I offered before. In that case I had cracks and repaired them from the outside without removing the tanks. However, I would think the strength of fiberglass cloth would be superior to powdered fiberglass. It is quite hard when saturated with the ABS solvent and not prone to run away. |
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dobber
Joined: 19 Oct 2008
Posts: 18
Location: norway michigan-in the U.P.!!
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Mon Oct 20, 2008 3:49 pm Post subject:
Re: |
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| KWMyers wrote: | | I don't have any experience beyond what I offered before. In that case I had cracks and repaired them from the outside without removing the tanks. However, I would think the strength of fiberglass cloth would be superior to powdered fiberglass. It is quite hard when saturated with the ABS solvent and not prone to run away. |
Well, alrighty then. I'll give it a shot. Worse comes to worst, a new tank. Thanks for your input. I'll post my results as soon as I can get to it.
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if you want to heard-------speak up
if you want to be respected--listen up |
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dobber
Joined: 19 Oct 2008
Posts: 18
Location: norway michigan-in the U.P.!!
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Thu Oct 23, 2008 3:49 am Post subject:
Re: |
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| KWMyers wrote: | | Use fiberglass cloth material with ABS cement and you'll have success. Should be available from any good RV supply store. Drill the end of the cracks with a 1/8" drill to stop the crack(s) from spreading first. |
Well, I got a fiberglass cloth, not the big rough stuff, but a much finer looking cloth. Applied it to the area using abs cement, not multi-purpose stuff, the actual black glue. Brushed it on evenly into/onto around the hole and cracks. I have not tested it yet but just by looking at the repair, it's a pretty safe bet that it will work.Sometimes you can just tell. I am really happy with the results and will do the same to the grey water tank which is warming in the basement. Thanks for the tip.
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if you want to heard-------speak up
if you want to be respected--listen up |
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dobber
Joined: 19 Oct 2008
Posts: 18
Location: norway michigan-in the U.P.!!
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Tue Dec 09, 2008 5:23 pm Post subject:
Re: |
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[quote="dobber"] | KWMyers wrote: | | Use fiberglass cloth material with, it's a pretty safe bet that it will work. Sometimes you can just tell. I am really happy with the results and will do the same to the grey water tank which is warming in the basement. Thanks for the tip. |
Well, it took about five or six coats of abs glue, but they are finally fixed. The damage was a little more invovled than I thought.
2 quarts of glue--$15.76
5 hours labor------free
1 fiberglass cloth--$8.50
Tanks that don't leak-----priceless
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if you want to be respected--listen up |
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KWMyers
Joined: 24 Oct 2006
Posts: 138
Location: Missouri, USA
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Tue Dec 09, 2008 7:24 pm Post subject:
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| Congrats! It's good to hear you were successful. |
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LakeConroePenny
Joined: 30 Jun 2007
Posts: 13
Location: North of Houston
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Sat Dec 20, 2008 4:30 pm Post subject:
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I was told that fiberglass won't stick to ABS for very long, but maybe the way you did it, it will. I hope so. 
Eternabond Tape will fix holding tanks and it will stick to ABS. You have to roll it after applying with something like a wooden wallpaper seam roller to get all the air out and get a good bond.
If you have ever tried to get Eternabond off anything, you know that it really does stick! 
Happy Trails, Penny, TX |
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