Galvanic Corrosion

[dmx]

I have an existing 1.25" (I.D.) galvanized steel conduit that I would like to run a 0.75" (I.D.) copper line through and I am concerned that there may be some Galvanic Corrosion if the copper line sweats. The copper line is carrying water. Has anyone donethis before and if so have you had a problem with Galvanic Corrosion and/or do you have any reccomendations on protective coatings (tape,insulations, paints) that may be usefull. Or should I just switch to plastic for the service?

Thanks for the help.

 

[saxon]

dmx, If your water is in the allowable pressure and temperature ranges, use plastic. You'll find its cheaper than copper.

Hope this helps.
saxon