Removing connector from water heater nipple

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Old 08-13-16, 06:54 PM
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Removing connector from water heater nipple

Hi,
I have a really old water heater and was thinking about removing the copper connectors from the water heater nipples and replacing it with a Flexible Water Heater Connectors. However, as you can see from the pictures, the copper connectors looks pretty caked on. Anyone with a good idea on how to remove the copper connectors without breaking the nipples?

Another idea was to just remove the water heater nipples and replace them with new ones, if I'm unable to unscrew the copper connectors.

thanks
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Old 08-13-16, 07:09 PM
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In order to facilitate the use of flexible lead in pipes, you will need to cut the copper pipes well above where it is shown and either sweat a 3/4" male adapter to the pipe or use a 3/4" Sharkbite/3/4" IPF male fitting to the copper stub after you cut it off.
 
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Old 08-14-16, 07:35 PM
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thanks for your reply. So you don't recommend trying to remove the copper connector then?
Another thing I wanted to find out was if the water heater is using a Dielectric nipple. Is there a way to determine if there is a dielectric nipple or not without removing the copper connector?
 
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Old 08-14-16, 07:53 PM
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So you don't recommend trying to remove the copper connector then?
You can't just unscrew the connector off the water heater. You need to cut the copper pipe and then unscrew the fitting with the short piece of pipe attached.

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Old 08-14-16, 08:00 PM
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BUT, in order to utilize a length of flex, you will need to cut it up a little higher, possibly on the lateral pipe. You can, then, remove the brass/copper fitting attached, hopefully, to a dielectric nipple. If not, whatever is there can be removed and a dielectric nipple installed.
 
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Old 08-14-16, 08:02 PM
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I just re-read your opening post. If the water heater is very old..... I wouldn't even mess with it.
 
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