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Old 07-04-2013, 01:27 AM   #1
Junior Member
Join Date: Oct 2012
Posts: 3
Exclamation '80 Itasca Sunflyer hot water went Brrr-kablooey!

I was stupid. Let me just get that out there.

I never knew how to properly drain my tank and last fall there was a sudden cold snap in October that froze my old bird with water still in the holding tank and the pump forgotten in the on position. It never leaked so I didn't even notice it was on. Needless to say, driving by it to check after the frosty night, it was pouring a steady stream down the access panel. I parked behind it, ran in and shut the pump. I drained it best as I could and winterized it. We pulled it out of storage last week and there is a hole in the tank! After removing the panel and shimmying the tank out as far as I could, there appears to be a welded section about 1 X 2" where it split open.
I want to know, is the tank dead? What does it look like on the inside and can I check if it was damaged there too? Can I JB Weld this aluminum tank or no? I don't think it's stainless, feels like aluminum.
Thoughts on welding or JB welding?

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Old 07-09-2013, 06:35 PM   #2
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Join Date: Nov 2009
Posts: 2,043
Uh, don't JB weld it.. there is a minimum of 30psi on that tank. Aluminum does not repair well the 2nd time around on welds. Just replace the hot water heater.
94-Newmar Kountry Star 40-KSDP
Spartan/Cummins 8.3C-300HP/Allison 3060 WTEC-II/25yr RV Tech RVIA Certified/Onan-Cummins Certified
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itasca, water

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