"Vic Smith" wrote in message
...
On Sat, 16 Feb 2008 22:07:56 -0700, "Donna Ohl, Grady Volunteer
Coordinator" wrote:
snipped instructions for heater replacement

If your pipes are galvanized you don't need di-electric fittings.

Don't use galvanized pipe; it rusts from the inside out after a few decades.
Use copper.