Quote:
Originally Posted by craigster59
Not sure, with copper vs brass do you need a di-electric union?
|
Dielectric is not needed between Brass & Copper but is required between the galvanized and copper - which I have done under the house to the main water connection. I'm not sure why but Brass does not conduct like copper to galvanized. According to my research, about 50% of plumbers use brass to connect copper to galvanized and the other 50% use a dielectric coupler - it's mixed opinions. My neighbor, who is a plumber told me that either works and so I'm using the dielectric fitting because the one I found is simpler and has the sweat fitting on the copper side.
Quote:
Originally Posted by hcoles
I didn't answer your question. The NPT slip fittings NPT threads will match up with brass items with NPT threads.
|
Thanks all. I will double check tonight as it's possible that my threads are for hose fittings and not plumbing NPT.
I've been looking at internet photos and I see both brass & copper being used for the final connection to the water heater. Regardless, I am going to bring my connection fitting with me and make sure I get the correct final pipe connection before installing.