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Old 02-01-2017, 09:17 PM   #1
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Water Heater Supply Line Connector type


The current water heater uses a corrugated copper supply line connector, and I think it would be wise to replace it when installing a new water heater. Lowes doesn't carry copper, only stainless steel.

I understand that copper to galvanized is a no-no, but is it ok to use a stainless steel to connect the existing copper pipes?

Should I use teflon tape on new connection to a new water heater?
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Old 02-01-2017, 09:24 PM   #2
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Re: Water Heater Supply Line Connector type


https://www.copper.org/applications/...derations.html
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Old 02-01-2017, 09:44 PM   #3
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Re: Water Heater Supply Line Connector type


If you have galv. supply lines I strongly suggested you make plans on replace them.
100% of the time the close up and rust on the inside reducing flow and are going to leak at some point.
First thing I do when looking at a house to buy and it has steel supply's is deduct the cost to replumb it with PEX.
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Old 02-02-2017, 07:03 AM   #4
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Re: Water Heater Supply Line Connector type


Quote:
Originally Posted by HolyCow View Post
The current water heater uses a corrugated copper supply line connector, and I think it would be wise to replace it when installing a new water heater. Lowes doesn't carry copper, only stainless steel.

I understand that copper to galvanized is a no-no, but is it ok to use a stainless steel to connect the existing copper pipes?

Should I use teflon tape on new connection to a new water heater?
Replace your supplies with the same or the stainless ones. Both will do just fine.

The nuts on the flex have washers similar to a hose connection. So thread tape will only help reduce friction while tightening. Use it or a teflon based pipe dope. A small amount is all you need.
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Old 02-02-2017, 12:12 PM   #5
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Re: Water Heater Supply Line Connector type


New tanks come with a dielectric nipples. So you have no issues connecting the copper lines.
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Old 02-04-2017, 03:53 PM   #6
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Re: Water Heater Supply Line Connector type


I hope you are talking about the stainless corrugated lines and not the stainless flex lines. If it's the stainless corrugated lines, you'll be fine connecting them to anything. Don't use the stainless flex lines.
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Old 02-04-2017, 11:48 PM   #7
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Re: Water Heater Supply Line Connector type


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I hope you are talking about the stainless corrugated lines and not the stainless flex lines. If it's the stainless corrugated lines, you'll be fine connecting them to anything. Don't use the stainless flex lines.

Why not use flex stainless steel lines? They make the for water heaters.
http://www.homedepot.com/p/Eastman-3...8259/205971718
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Old 02-05-2017, 11:59 AM   #8
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Re: Water Heater Supply Line Connector type


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Why not use flex stainless steel lines? They make the for water heaters.
http://www.homedepot.com/p/Eastman-3...8259/205971718
They are glorified garden hoses. Basically a hose covered with stainless steel braid. For awhile there were issues with them bursting or leaking. They rate right up there with the slip on connectors for a water heater. The only time I have even used the corrugated stainless ones were making connections to my well expansion tank and water softener because they could need repairs done or movement. A water heater isn't moving and if you have copper pipes, there's no reason to not sweat it in place.
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Old 02-05-2017, 12:02 PM   #9
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Re: Water Heater Supply Line Connector type


I personally don't care for even the stainless corrugated ones because they rely on a garden hose type rubber washer connection and it's easy to over tighten them and cut right through the rubber washer. Or for it to degrade over time. I wish they made the same type of corrugated lines only with a pipe connection that actually used a tapered thread connection you could tighten up and not rely on a rubber washer. Of course, I'm not an engineer and know it would probably present a problem to have a swivel connection that doesn't use a rubber washer. Or it would be expensive to make.
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Old 02-05-2017, 06:10 PM   #10
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Re: Water Heater Supply Line Connector type


Not sure how you are or if your even a licenced plumber but your post are way off base!
Never once had an issue using braided flex lines.
So much easier for a a DIY.
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Old 02-05-2017, 08:06 PM   #11
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Re: Water Heater Supply Line Connector type


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Originally Posted by joecaption View Post
Not sure how you are or if your even a licenced plumber but your post are way off base!
Never once had an issue using braided flex lines.
So much easier for a a DIY.
Really? Way off base huh? So because YOU haven't had an issue with SS flex lines, then they must be ok right? Try reading this then let me know.

https://www.classaction.org/water-supply-lines

http://www.lemurzone.com/rfg/index.p...omment-page-1/

http://www.consumerclasslawyersblog....sands-dollars/

http://www.werc.com/2014/11/10/commo...-water-damage/
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Old 02-05-2017, 08:09 PM   #12
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Re: Water Heater Supply Line Connector type


Quote:
Originally Posted by joecaption View Post
Not sure how you are or if your even a licenced plumber but your post are way off base!
Never once had an issue using braided flex lines.
So much easier for a a DIY.
You are more than welcome to use whatever you would like, and as I said in my post "I personally don't care" for them. But to attack me, and my credentials because you don't agree with what "I personally" don't agree with, is very unprofessional.
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Old 02-05-2017, 09:05 PM   #13
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Re: Water Heater Supply Line Connector type


Quote:
Originally Posted by joecaption View Post
Not sure how you are or if your even a licenced plumber but your post are way off base!
Never once had an issue using braided flex lines.
So much easier for a a DIY.

I agree with you. Never saw a problem with braided lines. Been using them for years on washing machines.
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Old 02-06-2017, 01:32 AM   #14
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Re: Water Heater Supply Line Connector type


We use braided hoses (by OEM spec) on heating systems. Some of which hit well over 100psi at about 140*f..... Usually flared fittings though, but I've seen a few rubber seals. Who am I to argue with the OEM?

Cheers!
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