New water heater rust at water connections

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Bookrat

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I have a water heater that was just replaced the old water heater ended up leaking at the bottom. A new whirlpool electric water heater was installed. The new water heater came with per-installed dialectic nipples. The copper water lines were cut and a shark bite connection was screwed onto the dialectic using pipe dope and the pipe was pressed into the shark bite connection. It has only been two months and there is corrosion evident right at the connection of the shark bite connector to the dialectic nipple. There is more corrosion on the hot water side then on the cold. There is no evidence of any leaks and the previous water heater did not use a dialectic union. What would be causing this corrosion so fast? The house does have a water softener as well. Any help would be appreciated.
 

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Dj2

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Maybe the "brass" looking connector is "pot metal" imported from (?).
Replace the nipples and connectors. This time use copper connectors, the same connectors our grandparents used to use.
 

Tom098

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As above suggests.
Why not replace the nipples with 4" brass nipples, and thread on adaptors and 18" of copper before transiting to plastic?
FWIW: The City of San Jose Ca. plumbing code requires 6" brass nipples to connect cu to galv during a re-pipe - dielectric fittings are not allowed.

Maybe just me but I think Water Softeners are responsible for a number of plumbing issues - & maybe health issues. Just saying.
 

Dj2

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Brass nipples are more expensive than dielectic nipples (which are installed by the mfgs on new water heaters). maybe that's why.
Sometimes I use brass nipples. I also replace plastic drain bibbs with brass.

BTW, anyone who still has galvanized pipes ought to re-pipe, the sooner, the better.

Water softeners? I never liked them.
 
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