holding tank leak - Fiberglass RV

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Old 07-23-2006, 04:12 PM   #1
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Name: Karalyn
Trailer: Eggless for now but looking. currently own Amerilite 21 ft
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A rock hit the bottom of the plastic holding tank and caused a leak in my son's camper. Just wondering if anyone has an idea on how to repair a plastic tank with a crack in it??

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Old 07-23-2006, 04:24 PM   #2
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British Columbia
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I had a crack in my water tank on a different unit.I used liquid plastic in a tube.Worked great.

I should add that i did it too a fresh water tank----40 gals

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Old 07-24-2006, 01:06 PM   #3
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Trailer: Boler (B1700RGH) 1979
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This came up previously, and here's a link to my description of my repair: Leaking Grey Water Tank on Boler. A follow-up with a photo is a couple of posts later in the same thread. The patch is holding up fine, a couple of camping weeks and a few thousand road kilometres later.
1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
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Old 02-24-2013, 02:30 PM   #4
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Name: Landy
Trailer: 17ft. Burro
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I have used Gorilla tape to repair the graywater holding tank on our Burro. I think that the tank is made of ABS, but I think that the Gorilla tape will work on most anything. Just make sure the area around the crack is quite clean and then apply a couple of layers of Gorilla tape. This tape should be readily available at home centers, paint stores, and hardware store.
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Old 02-24-2013, 03:51 PM   #5
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Oswego, NY
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Look for a shop that can do plastic welding. There are other solutions, but welding the crack is the best.
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Old 02-24-2013, 04:09 PM   #6
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I had a golf ball sized gash in my holding tank. I cut a piece from an old plastic cutting board that was the same plastic, and then spent some time *slowly* heating each up around the edges and then 'welded' them by smearing the soft plastic with a heated up knife. It hasn't leaked in over 2 years.
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Old 02-24-2013, 04:42 PM   #7
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A good old fashioned soldering iron works great. Make sure it is dry first.

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