replying to David Nebenzahl, villiewe wrote:
Simple: I assumed the black iron was so you could tell which lines were gas
while galvanized was water.
When I had this house inspected 41 years ago before buying, he suggested I ask
the owner was was the purpose of the galvanized iron going to the attic! I
paid him anyway!
--
for full context, visit
https://www.homeownershub.com/mainte...pe-616549-.htm