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Old 01-09-2008, 02:03 AM  
chris8105
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Default Flex lines on hot water heater

I noticed that my electric water heater has the stainless steel flex water lines on it and not the solid copper pipe going to the water heater. They dont thread onto the copper pipe, instead they are attached with compression fittings. Is this setup ok? Just wondering because all the other water heaters I have seen are plumbed with copper pipe. Are the stainless steel flex lines anything to worry about?

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Chris


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Old 01-09-2008, 02:27 AM  
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I see flex stainless and flex copper connecitons used on water heaters all the time. If it doesn't leak, it should be fine.


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Old 01-09-2008, 07:03 AM  
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Default Yup

They are also good in earthquake country, less plumbing breaks during the big one. Mabey your plumber moved in from CA.
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Old 01-09-2008, 01:06 PM  
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Thanks for the info fellas.
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Old 01-10-2008, 06:36 AM  
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Old 01-10-2008, 12:39 PM  
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Would there be any questions about corrosion with the dissimilar materials? Or would it be fine as long as there's some kind of "insulator" between the two?
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Old 01-10-2008, 05:57 PM  
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If the fittings are stainless, I don't see an issue but, to be on the safe side, you could install the normal dielectric fittings.
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Old 01-11-2008, 12:22 AM  
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Let's score one for Jeff! They are dissimilar metals and that means the copper will dissolve. The stainless steel lines I used to sell were for gas lines while the copper ones are for water. I haven't seen a stainless water line in my carreer; maybe someone needs to bring me up to date.
While we are on the subject, stainless steel comes in varying degrees and much of it will rust under certain conditons. It is made from Iron refined to be steel and add some chrome and molly.
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Old 01-11-2008, 03:09 AM  
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Good point about two different metals. They look like the same ones that Home Depot sells. I'm pretty sure that the compression ring on them are brass.
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Old 01-11-2008, 01:03 PM  
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After doing some research, I found out that the brass and the copper will be just fine. Brass is an alloy that has copper as the primary component. Zinc is typically the other significant component. Brass and copper are very compatible.


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