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Old 08-10-2006, 06:37 PM   #1
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Fresh Water Tank Repair

The fresh water tank in our '67 Safari has a very small hole about the size of a pin head. Unfortunately, it is on the bottom of the tank. Any suggestions as to how to plug this? The previous owner smeared a bunch of fiberglass all over it, but that failed. Is there an epoxy I can use? Thanks.
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Old 08-10-2006, 07:07 PM   #2
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I have had limited success with a soldering iron and an empty plastic milk jug. The caveat is that I was repairing a black water tank. It is made of the same material, so my plastic welding method should work on yours too. When you are done, there are stick-on patches that will help reinforce your repair, available at Camping World, and other RV supply stores.
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Old 08-10-2006, 09:33 PM   #3
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If you are nervous about making a larger hole through the welding process, a common occurence unfortunately, you could also take the tank to an RV repair shop where they have the right equipment and experience welding polyethelene. If you do decide to do this on your own I strongly encourage you to practice on something else first and more than once. I was in the RV tank manufacturing business for many years and I know how easy and at the same time hard it is to do the welding. If done right you get a very strong repair. Some folks come by it naturally, but we sold a LOT of replacement tanks to the many who turned out making a much larger hole than what they started with.
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Old 08-10-2006, 09:35 PM   #4
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I love the West System Epoxy, it has worked well for me in conjuction with epoxy glass. Just because I am familar with it that is what I would use. Stainless steel sheetmetal screw and epoxy would work too.
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Old 08-11-2006, 06:10 AM   #5
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Thanks to all who have offered suggestions. I rarely even use the fresh water tank. Perhaps even once or twice a year. I would even consider getting a new one if I could match the dimensions. Thanks again.

Terry
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Old 08-11-2006, 06:55 AM   #6
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Tank repair

Epoxy will not adhere to polyethylene or polypropelyene, if it's just a small hole, either weld it as mentioned or put a wellnut in the hole.

ZoomZoom
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Old 08-11-2006, 07:16 AM   #7
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I also thought about taking it to a place that sprays on bedliners and having them coat the entire thing. Anyone have any thoughts on that?

Terry
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Old 08-11-2006, 09:14 AM   #8
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Tank

It seems as though we are all assuming this fresh water tank is metal? or is it poly or is it fiberglass. You have not said.

I am going to assume it is either stainless steel or the big heavy galvanized steel.

see this post
Replacing Galvanized Steel Tank - '61 Bambi

I just used JB Weld. workded like a charm. 6 years and counting.
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Old 08-11-2006, 09:27 AM   #9
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It is plastic. I would be happy to replace it if I could. It's an odd size though. 12X12X48. Thanks.
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Old 08-11-2006, 10:29 AM   #10
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If the hole is indeed 'pin hole' size, then a stainless sheet metal screw and a good gob of Sikaflex should do the trick. Be sure to rough up the surrounding area with a 100 grit sand paper.

If you want a totally permanent repair, then it should be plastic welded wth a welding stick of the same type plastic. There are 2 types of plastic welding systems: one uses a heated element with special tips and compressed air and the other uses a flat tip on a heated pencil that resembles a soldering iron.

Either way takes a little practice to get it right, and for the investment required, I would call around to your local RY repair shops to see if any of them provide this service. I have both systems, and it's usually an access issue that determines which one I use.
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Old 08-11-2006, 11:12 AM   #11
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Thanks Lew. I have called around to the local RV shops and you would have thought I was asking them to repair the space shuttle! Apparently no one around here has that skill set! Maybe I need to learn.

Terry
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Old 08-11-2006, 11:13 AM   #12
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They don't have your size listed, but I'm considering one of these for my trailer.

http://www.valterra.com/RV/fresh_wat...accessorie.htm


Quote:
Originally Posted by Keyholeren
It is plastic. I would be happy to replace it if I could. It's an odd size though. 12X12X48. Thanks.
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Old 08-11-2006, 11:47 AM   #13
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Most RV repair places don't want to fool with somethng that they are not making a pile of money on, hence their response. This is one reason why most of us have learned to do things like this ourselves.
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Old 08-11-2006, 12:13 PM   #14
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All-Rite.com can make you a plastic fresh water tank to your exact dimensions for around $200. They will even put in the needed inflow and outflow ports exactly as you specify and where you specify. I had one made by them in 2002 and haven't had any issues. I paid $205 for it back then. You will need to go through an RV service shop though.

Brad
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