Plumbing materials

[David Brady]

But there will be galvanic action between the Cu and the Zn;

hence, the corroded galvanized fittings...



David

'02 LXi, NC



Gregory OConnor wrote:

Mike,you putz!, copper threaded parts are best to be fitted with a


harder metal. I think that is where they used the galv?? I replace

the galv fittings with brass even if there is copper avaliable. A

copper threaded with copper ends up screwing the threads (both are

soft). Using brass or galv keeps the threads erect. when you thread

a male plastic fitting into the copper, the plastic ID is way small

and it is hard to back out. Working with old copper lines I fit a good

treaded pipe wrench close to the copper fitting to hold the stress

from twisting the old line (for every action there is a equal and

opposit reaction)



GregoryO'Connor

94ptRomolandCa



--- In "WanderlodgeForum%40yahoogroups.com",
"Michael" <mike.putz@.<wbr>..>

wrote:

>

> I noticed when I removed my hot water heater the coach had copper
&

> galvanized fittings. The galvanized fittings sure seemed corroded.


> Shouldn't these all be copper fittings?

>

> Michael Putz

> 78FC35 "Putz'n Around"

> Mesa, Az

>

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